Archive for the 'DSLR' Category

Sony Alpha lineup: what does the Nikon D60 mean to future Sony dSLR models?

Tuesday, January 29th, 2008

Don’t look now, but photos of the Nikon D60 are starting to appear throughout the web. Why should A-Mount shooters care about Nikon’s latest offering? Aside from the fact that the D60 probably will use a Sony built sensor, rumors suggest that the D60 may replace the D40, which has been Nikon’s low end dSLR up until now. Before the introduction of the D40, Nikon lagged behind Canon in sales. Although I haven’t seen total world wide sales figures for dSLRs, shortly after the D40s introduction, Nikon began outselling Canon - at least in the Japanese market. There might have been other factors, but the D40 was a landmark camera for Nikon and undoubtedly helped Nikon regain its strength.

Of course the biggest reason the D40 has sold so well is price. The 6MP D40 carried a list price of $599. This was far less than most dSLRs and gave Nikon a real advantage in the dSLR marketplace,

A worthy competitor to the Sony A200?

If the rumors are accurate, the new Nikon will carry a 10.2mp sensor, making it a true competitor to the brand new Alpha A200. Here is where things get interesting. As I said, many rumor sites are indicating that the D60 will replace the D40. Which begs the question, if the D60 will replace the D40, will Nikon retain the $599 price for their introductory model?

If so, this is significant, because it will mean that the brand new Sony A200 will soon have to face a 10.2MP Nikon that will be priced about $100 less.

Of course the details of Nikon D60 are still cloudy, but it is believed that it will be a 10.2MP dSLR with an anti-dust system and similar internal processing as the upper level Nikons.

Nikon hasn’t acknowledged the price of the D60, but it is awfully hard to raise prices in the world of digital cameras. If the D40 is actually going away, I think both consumers and resellers would start howling if Nikon suddenly raised the list price of their introductory model above the D40’s $599 kit price.

If the D40 remains in the catalog, then Nikon is free to price the D60 however they wish. If the D40 has reached the end of the line, however, the D60 almost has to sell for a similar $599 price.

What does the D60 mean to Sony Alpha Users?

So where does that leave Sony and the Alpha lineup? The A200 has at price of $699. That wasn’t a big problem when facing the D40, which could only muster 6MP. Against a similar 10.2MP model, however, the A200 starts looking overpriced.

Alpha A200’s great advantage: Super Steady Shot

The one great advantage the A200 will continue to enjoy is in-body image stabilization. The D60 can’t match that, so the A200 can be considered a superior camera. In fact, unless Nikon were to offer an image stabilization lens as the kit lens (highly unlikely at $599), D60 users will have buy an expensive IS lens to enjoy the image stabilization Sony users get with all lenses. I’m not an expert on Nikon lenses, but most IS lenses I have seen would cost more than the D60 body.

So Sony probably could justify the higher price tag of the A200 on this single feature alone. Those who realize the value of in-body IS would probably feel it was worth it.

But many of the people moving from basic digital cameras don’t necessarily understand the value of Sony’s Super Steady Shot. (Great system, really dumb name.) For the bulk of first time dSLR users, the pixel count is still the determining factor. While some of the better camera shops may take the time to explain Anti-Shake to prospective users, Sony can’t expect the sales people at the big box stores to steer people into the A200.

So that $100 could be a real liability, unless Sony either drops the price of the A200 or introduces a lesser priced dSLR. If the D60 does list for less than $600, I expect Sony to react quickly.

What is your take?

Technorati Tags:
, , , , , ,

Hi! If you're new here, you may want to subscribe to my RSS feed. You can also sign up to receive e-Mail updates from the homepage at http://alphatracks.com Thanks for visiting!

Will the Alpha A300 be the next SLR from Sony?

Thursday, January 24th, 2008

Ok, the Sony A200 dSLR hasn’t even started shipping yet, but already the rumor mill is racheting up into a fever pitch. The majority of the rumors are claiming Sony will introduce at least one or perhaps two new dSLRs slotted between the A200 and the A700. The new cameras, which the rumor sites have started identifying as the Alpha A300 and A500 models, are supposedly designed to provide Sony with a full range of dSLRs and offer Alpha-mount users a series of competitive price points.

Of course, Sony hasn’t even told us that the flagship SLR will be called the A900, although most camera pundits are already calling it by that name. They haven’t said that there will be an A300 or an A500 or any camera between the A200 and the A700. Then again, Sony didn’t tell us much about the A700 before it’s release and they certainly didn’t tell us anything about the A200 before the announcement. In this matter, it seems Sony is patterning itself after Apple, Inc. Apple’s Steve Jobs is famous for keeping an extremely tight lid on future products and the Mac rumor sites drive their readers crazy trying to guess what Apple’s next move will be. It isn’t difficult to draw a parallel to Sony’s dSLR camera division, which seems more secretive than the other top-ranked digital SLR camera makers.

Alpha A100

What’s next for Sony’s Alpha dSLR lineup?

So the rumors could have at least a grain of truth to them. There are even “leaked” photos of the supposed middle of the road cameras. You can see one set of leaked A300 photos at Photogrqphy Bay. Slash Gear offers the same tilt out, LCD Live View Alpha A300 photos.

Of course, in the days we find ourself in, photos are hardly overwhelming evidence. You can create some very convincing fakes in Photoshop, especially if you mix parts of various existing cameras. In the Apple Inc. rumor scenarios I mentioned, there have always been dozens of very well done, fake images floating around, especially before an upcoming product launch. Even some big name media outlets have published these fake photos as the “real thing,” then they had to swiftly backpedal when the actual Apple announcement was made.

So I am not going to speculate too deeply about the supposed new models, other than to wonder if there is a valid reason for Sony to offer any models between the A200 and the A700.

On the face of it, I don’t understand why Sony would need a fist full of camera models. To my mind, the A200, A700, A900 lineup seems to cover most dSLR users. If anything, I think Sony could use a stripped down dSLR model priced beneath the A200 that would coax more point and shoot users to move into a dSLR. At the same time. however, I am perfectly willing to concede that Sony has their own strategy for the Alpha line and they are more qualified then I am to plan their future dSLR offerings.

Minolta, of course, offered a plethora of models once they started to flesh out the A-mount line. If you check out Mike Hohner’s great Sony/Minolta Auto Focus body list, you will see that Minolta sold models to fit every possible need and price range. Did consumers really demand that many different SLR bodies? Apparently Minolta thought they did.

Details are sketchy, but the supposed leaked images show a camera similar to the A200 with a tilt out LCD screen. The implication is that the new model(s), if they are real and not some Photoshop wizard’s fantasy, will have Live View.

Now remember these are rumors we are talking about here — not confirmed facts. Shortly before the A700 was launched thee were some very respectable camera writers suggesting that the Advanced Amateur dSLR (which was released as the A700) would have 14mp and feature a 1.25 crop sensor. Neither came to pass, the A700 uses a very respectable 12mp, APS-C sensor. But many enthusiasts were disappointed that the camera did not live up to the rumors. If you are going to play the rumor game, you have to accept that fact that some, if not most, of the information will be inaccurate. That’s just the way it is.

Having said that, a lot of Alpha enthusiasts are speculating that Sony will release a new dSLR model priced around $1,000 US — smack in between the A200 and the A700.

Hmm… That places the mystical A300/A500 about $300 or so more than the A200. It could happen…but what exactly could Sony tack on to the A200 to make it worth three hundred more than the A200?

Live View? Maybe that is worth three bills to some people — it certainly isn’t to me. There are a few legitimate uses for Live View, but I would guess I would use Live View for less than 5% of my shooting. Is that worth $300 to you?

The other laughable suggestion is that Sony will equip the fictional $1,000 camera with a larger sensor…maybe the same 12.7MP sensor the A700 uses.

I ask you, if Sony suddenly unleashed a 12mp dSLR priced at a grand (list), what role would the A700 play in the Alpha line up? If you had the chance to buy an A200 style body with the sensor from the A700 at $1,000, would you ante up the extra $500 or so for an A700? Maybe some would, because the A700 is definitely a superior camera. For most users, however, the thousand buck 12mp dSLR would do nicely, effectively cannibalizing sales of the A700.

There are, of course, some limitations to the A200. AFAIK, there is no PC sync port and it doesn’t offer provision to tether the camera to a computer. I could be wrong on both counts, because the Sony A200 press release doesn’t address these issues. But I don’t see evidence of a PC port in the advance photos and the Alpha A100 lacked these features, so I am assuming the replacement will as well.

Would an 10mp A-mount SLR with Live View, PC sync and tethered shooting be worth $300 more than the A200? I’m not sure, but it would definitely be a step in the right direction. What’s your take on the A300/A500 rumors?

Technorati Tags:
, , , , , , ,

Hydra: Save on new Mac HDR photography tool

Monday, January 14th, 2008

If you been interested in experimenting with High Dynamic Range (HDR) Photography, but haven’t yet acquired the software to create HDR images, this is an excellent time to get started. Creaceed (formerly known as eX-cinder) is about the unleash Hydra, an elegant Mac-only HDR program. Of course there are other Macintosh HDR programs available, but Hydra looks like it offers cutting-edge features at a very affordable price. Hydra will list for $59.95, but if you license it before February 1, 2008, you can pickup Hydra for only $39.95.

High Dynamic Range Photos

If you are not familiar with HDR photography, the process involves combining several images taken at different exposures to create a single image. The final image contains a full range of details from highlight to shadow. The human eye can see details across a much broader range than any film or digital sensor. You can stand inside a dim room and see both someone in the room and the scenery out the window. In most cases, a camera can only capture the details inside the room or the details outside the window. If you expose for the room, the window will be washed out with no details. Expose for the sun-lit window and the room will appear dark and shadowy. Until recently, it would require multiple exposures and lots of retouching to accomplish the same thing in a photo.

The Dynamic Range Optimizer (DRO) engine included in all the Sony Alpha dSLRs provides a form of in-camera HDR. While DRO is a step in the right direction, I think a true HDR photo offers a number of advantages.

Hydra is Leopard only

I haven’t been able to try Hydra out as yet, because won’t be available for download until sometime this week. Apparently Creaceed will take the wraps off the new program at Macworld and make it available for download at the same time. Accordingly to the website, there will be a evaluation version available, so you can try it out before parting with that $39.95. Before you get too excited, be aware that Hydra only runs on OS X 10.5 Macs, so if you haven’t upgraded to Leopard yet, this program isn’t for you.

I’m emphasizing the price, because the leader in HDR applications is Photomatix Pro 2.5.4, which lists for $99.00. The latest version of Photoshop also includes some HDR tools, but Photomatix Pro is generally considered superior. If Hydra can approach the quality of Photomatix Pro, then that $39.95 introductory price makes it a real bargain.

Although I haven’t been able to get my hands on a working copy of Hydra as yet, the Creaceed website has some interesting preview videos. I won’t go into the details here, because it is worth your while to explore the Creaceed website and watch the videos.

From the videos, I’m excited about the Hydra’s possibilities. You can blend up to four images, which is less than some of the other applications I’ve tried, but should provide plenty of data for most HDR creations.

Like any good Mac application, Hydra supports drag and drop, so it is a simple matter to drag your images into the working screen. Interestingly, Creaceed has included matching tools that allow you to blend a series of hand-held images into a single HDR image.

HDR without the tripod?

This last point is important, because the general HDR workflow involves taking a series of images on a tripod, exposing each one differently to record the full range of highlights and shadows. Creaceed claims their matching mode will allow you to create a HDR photo from a series of hand-held shots. Basically, the application allows you to manually move the stack of images around to match them, then uses a software routine to attempt to line everything up perfectly. I can’t say how well this works, but I am intrigued. The ability to create hand-held HDR photos could go a long way toward making HDR more attractive to general photographers. Overall, I’m taking this with a grain of salt. I want to try it before I endorse the HDR-without-a-tripod claim.

Hydra also gives you a full preview of the blended images and allows you to adjust each image to obtain the HDR details you want. You have to watch the blending video to see this in action. It looks very cool and I am looking forward to creating some custom HDR photos with this advanced blending option.

In the right hands, HDR can be stunning

Some people don’t like HDR photos, because, like any new photographic process, early users tend to overdo the effect. We’ve all seen HDR photos that looked fake, surreal or disturbing. In the hands of a photographer/retoucher with a good artistic eye, however, HDR photos can be truly stunning. Try searching on Flickr for &qte;HDR&qte; and see what come up. You will see many poorly done, over-the-top examples, but you will also find some incredible images that will take your breath away. Consider this nighttime HDR image of a Russian submarine by Alkhodarev. (Note: This image opens in a new, full-screen window.) Of course, I doubt Alkhodarev used Hydra to produce this image — the application isn’t even available until later this week. As example of a beautifully done HDR image, however, this image is second to none.

Of course you don’t want want to shoot everything in HDR. There are plenty of subjects and lighting conditions that don’t lend themselves to HDR. Yet, I believe that HDR and DRO images will become more and more common in the years ahead. If you want to see what all the fuss is about, check out the Creaceed website and download the Hydra demo when it becomes available. For less than $40, you can start experimenting with High Dynamic Range and see what you can do with this fairly new medium. If you have a Leopard equipped Mac, I think Hydra is well worth acquiring at the intro price.

Technorati Tags:
, , , , , ,

New Sony Alpha A200 dSLR: will it kill A100 prices?

Thursday, January 10th, 2008

Now that we can bask in the glow from two new Sony Alpha dSLR models announced in the last four months, it is time to step back and wonder about the original Alpha — the Sony A100.

Sony has finally admitted that the A100 has been discontinued, although many observers believe A100 production stopped months ago. That doesn’t mean here aren’t plenty A100 kits in the pipeline. If you want a new Alpha A100, you probably can find one easily. The question is; should you buy one and how much should you pay?

Long time readers of Alphatracks may feel I don’t really like the A100, as i seem to always be negatively comparing it to the A700. That isn’t true at all. The A100 is a nice enough piece of hardware, but it is totally outclassed by the features of the A700. The A700 is superior in every way to the A100. Then again, the A700 is selling for about twice the price, so it should be superior.

Sony Alpha A100 — still a good, solid dSLR

Viewed on it’s own merits, however, the A100 is still a solid dSLR. It lacks many of the features available on pro and semi-pro dSLRs, but then so does the Nikon D40 and the Canon Digital Rebel. You get what you pay for, and if you don’t need those high-end features the A100 could serve you very well.

New Sony A200

The Sony A200 carries a list price of $699, ships in February.

Photo: Sony Corp, used with permission

The big question is how will the announcement of the all new Sony Alpha A200 affect to the price tag on the remaining A100 kits? The A200 is much closer in specification to the A100, so comparing the two cameras is easier. Once again, the A100 lags behind the newer model, but the differences aren’t as great. The two cameras boast the same pixel count and feature set. The new A200 offers faster auto focus, a larger LCD screen, faster burst shooting and several minor improvements. The A200 will accept a Sony made vertical grip and Sony claims the high ISO performance has been tuned to dramatically reduce noise.

About the only area where the A100 can claim to be better than the A200 is the controls, as the A100 is quipped with two top panel knobs, while the new model has been reduced to a single adjustment knob. It is a nice feature, but i doubt many photographers would choose the A100 over the A200 because of this solitary advantage.

In the market for an A200? Would a great deal sway you toward the A100?

Here is the thing. When the A100 was introduced in June 2006, it was the first 10mp dSLR to break the thousand dollar price threshold for body and lens. Originally priced at $999.00 ($899 body only) Sony gradually reduced the list price to accommodate the changing marketplace.

Alpha A100

Sony Alpha A100 is still available in many places. How much would you pay for one?

Photo: Sony Corp, used with permission

During the 2007 Christmas shopping season, I spotted the A100 at several of the local outlets — Best Buy, Circuit City, Office Max and HH Gregg. All four stores were advertising a price of 695.00 for the camera and kit lens — two hundred dollars less than the original 2006 sticker price.

Not too bad. But wait. Sony is taking pre-orders for the A200 at $699 — about five dollars more than I can buy an Alpha 100 locally. Online, the A100 is all over the map. If you eliminate the dealers advertising the A100 for a ridiculously low prices (trust me, the unbelievable online prices are almost always scams), you find legitimate dealers like B & H Photo selling the A100 kit for $649 — a mere $50 bucks less than I could order the A200 for. Amazon is even worse — they are actually offering the A100 (through a third party) for $727.00 — almost $30.00 more than a pre-ordered A200.

Sony still has A100 kits in stock — the body only package is listed as sold out, but you can still order the A100 with the 18-70mm Lens for $799 or you can splurge and get the A100 with the SAL-18200 Lens for 1099.95.

Can you say yikes? Obviously these prices won’t hold. The A200 isn’t available as yet, but Sony claims it will ship in February. Unless you absolutely have to have a camera now, it seems to be a no brainer to wait and get the better model. Otherwise you would be paying more for a lesser featured camera.

Caution. Falling prices ahead!

So what so you think the price of the A100 should be? If I were in the market for a dSLR in the A100/A200 class, it would take a substantial price cut to get me interested in the A100. If the difference was only $50.00, I would definitely spend the extra cash and get the better A200. I think the improved features of the A200 are easily worth more than a hundred bucks, so I would need to see prices fall well south of $600 before I would consider a new A100 over a new A200.

So far, we have been discussing brand new, full-warranty cameras. What about used models of the A100? If you are hoping to sell your A100 in the near future, you are probably going to have a hard time getting what you think it is worth. I don’t know how many A100s are still on dealer shelves, but I expect to see some fire sales as dealers clear the old stock to make room for the new hardware. How much would you pay for a used dSLR when you can buy something brand new for less than $600?

Of course there may be suckers who aren’t willing to do their homework before trading their cash for a shinny dSLR. When Minolta exited the camera businesses there were plenty of brand new Maxxum 7d camera kits in the warehouse. I saw several reputable outlets — places you know would stand behind their merchandise — selling brand new 7ds with warranties for less than $650.00. At the very same time, I saw numerous 7d auctions on eBay where the uninformed bid over $900 for a used model.

Back to the subject of pricing on the A100, I think we are going to see some interesting times in the months ahead. There are still many A100 hold outs who have decided to pass on the A700 and wait for the A900 (or whatever Sony ends up calling the flagship model). When the A900 is released, there will undoubtedly be a flock of used A100s on the market. If the dealers still have new A100 kits to rid themselves of, we may see some unheard of bargains for A-mount digital SLRs.

Let the price slashing begin!

Technorati Tags







Sony Alpha A200: new low cost starter dSLR

Tuesday, January 8th, 2008

Sony quietly announced a new dSLR model Sunday, January 6. The new Alpha A200 dSLR is positioned as a replacement for the now discontinued A100 dSLR. The Alpha 200 will anchor the Alpha line as Sony’s starter SLR model, providing a low cost point of entry for those unable or unwilling to spend the cash needed to acquire an A700.

New Sony A200

Sony will ship the A200, a new low cost dSLR, in February.

Photo: Sony Corp, used with permission

The new 10mp dSLR offers a number of improvements over the A100. Sony says the new camera is faster, lighter and easier to use. Two of the obvious enhancements include a larger 2.7 inch LCD screen and the availability of a vertical battery grip. Sony also claims the new camera offers reduced image noise and uses the same auto-focus system as the Alpha A700, which is said to be 1.7 times as fast as the A100.

The new dSLR includes the usual Sony/Minolta touches; Super Steady Shot, Sony’s DRO image optimizer, BIONZ processing engine and the anti-dust vibration system on the CCD sensor. Naturally the A200 accepts all of the A-mount lenses available for the A100 and A700. Sony and Minolta flash units compatible with the A100 will also work on the A200.

Those disappointed that the A700 did not carry on the legacy of the Maxxum 7D controls, will not find anything to cheer about on the A200, either. Sony reduced the control knobs to one and adopted a menu control to replace the missing dial.

The Sony press release doesn’t mention a PC Sync port (say it isn’t so!), so, like the A100, it is possible that the A200 will lack the ability to work with studio flash unless you use a hot shoe adapter. There is also no mention of tethered shooting, so you may need the more fully capable A700 if you want to shoot tethered to your computer. I hope I’m wrong about this and Sony just failed to mention it in the press release. But I’m not holding my breath.

I haven’t seen a picture of the new grip for the A200, but Sony identifies it as the VG-B30AM ergonomic vertical grip, so it is not the same grip used on the A700. Like the A700’s grip, however, the VG-B30AM will provide space for two InfoLITHIUM® batteries.

Now the real interesting part: the price. Sony says the A200 equipped with the DT 18-70mm f3.5-5.6 3.9x zoom lens will list for about $700 and will be available in February. They don’t quote a body only price, but as a benchmark, you saved about $100 when you purchased the A100 without the kit lens.

The A200 should provide Sony with traction in an area where they dearly need it — the low-end, starter SLR market. Priced at roughly half the price of the A700, the new camera should go a long way toward building Sony’s market share and greatly expand the ranks of A-mount shooters.

Technorati Tags






Are you smarter than your camera? 5 ways to prove it

Friday, December 28th, 2007

Modern dSLRs are technological wonders. They are crammed with components, sensors, LCDs and advanced circuitry. They do everything but talk — and a few are working on that.

Despite all this technical wizardry, the average dSLR is fairly dumb. It can’t think. It knows nothing about art, composition or lighting effects. It doesn’t care if you are photographing a beautiful sunset or the local garbage dump. It doesn’t see the difference and wouldn’t care if it did.

Yet, far too many dSLR owners allow this non-thinking, non-appreciative hunk of electronics to rule over their photographic endeavors. “The camera knows best,” is their motto and the more automatic controlled features their cameras have the better the like it.

True photographers know better. They can appreciate the wonderful features camera designers have incorporated into their hardware, but they remain the master of the thing. They aren’t afraid to use manual modes, and more importantly, they know when they should. They are smarter than their camera and their work shows it.

Under perfect conditions — bright, overcast day with no shadows and lots of reflected diffuse light — any camera can capture wonderful images. The problem is those perfect conditions don’t come along very often and they don’t exist indoors. Or in a shady forest. Or at night. Or…well you get the idea. Most of the time, you and your camera have to work together to get the best images. You have to be a team –and in any team there has to be a leader. You have to step up, overrule your camera and force it to capture the images you want.

The more I use my digital cameras, the more I find myself reverting to some sort of manual control. That doesn’t mean I never shoot in a fully automatic mode — it’s just that more and more often I find that my knowledge and experience lets me make better decisions than my camera. Sometimes I’m wrong and the camera actually knows best. Much of the time, however, my images show a marked improvement when I take control.

How do you develop this knowledge? It can start gradually, by occasionally experimenting with manual settings. If you always shoot fully automatic, in the program mode, try a few of these suggestions next time you are shooting.

Turn off auto focus.

Auto focus is useful and can be a lifesaver many situations. However, if you always let your dSLR select the focus you may be missing out on some great images. You might prefer part of your subject be out of focus. Its an artistic decision and your camera can’t make that decision for you. In addition, no matter how fast camera makers make their AF systems, pre-focusing will always be faster. So try using manual focus when it is appropriate.

Switch out of the program mode

I am finding less and less use for the program mode when I shoot. Since I understand what type of image I am trying to capture and the camera can’t read my mind — I find I am far better at selecting the best combination of aperture and shutter speed to get what I want. Camera makers have gone to great lengths to add program modes like sports, night, portraiture and the like. The idea is you can set your camera to the appropriate mode and forget about it. Sometimes this works, but I find I get better results when I determine the optimal settings. lately, I have been shooting almost exclusively in aperture priority. I set the F-Stop and the camera selects an appropriate shutter speed. Occasionally I will use shutter priority — especially if the light is shifty and I want to make sure I don’t fall below a certain speed. Sometimes I will use full manual — when I want to ignore the camera’s meter in order to get exactly the shot I have in mind.

Of course you don’t have to use any single mode for an entire shoot — many times I will find myself shifting between all four modes during a busy session. The thing is, you have to learn which modes work best for which situations. So next time you are out, switch out of program mode for at least part of the time. Once you learn how to make decisions your dSLR could never make on it’s own, you may find the program setting will become your least used mode.

Play around with exposure compensation

Most dSLRs offer some form of exposure adjustment, which will allow you to override the actual meter reading by a set number of stops. Much of the time, the default setting will be very close, but if you are attempting a special effect or the light is tricky, exposure compensation can be your best friend. Learn how to use it to your advantage.

Experiment with contrast

If your camera offers contrast adjustment, learn how this can improve your images in varying lighting conditions. If you are shooting outdoors at noon on a bright, cloudless day, normal contrast may make your images appear awful. See if toning down the contrast will soften the shadows and eliminate hot spots. If the light is weak and dull, can you improve the image by cranking in some additional contrast?

Vary your flash settings

It’s true. camera makers have created some wonderfully intelligent flash units. Even the built in flashes can produce stunning results under the right conditions. But there are plenty of times when the flash should be overruled. Start with flash compensation. Try more or less compensation to see how the light changes. Experiment with different shutter speeds to see how that affects the background. If you have a separate flash unit, get a cord and try shooting with the flash off the camera. Experiment, You’ll get some duds, but you will also get some wonderful images. And you will never allow your camera to dictate how your flash should be used in the future.

I urge you to try all of these techniques when you get the chance. You might not use every one every time, but make it a point to try at least one of these each time you head out with your dSLR. If you do, and you ware willing to learn from your successes and your failures, you will quickly se your photographic IQ surpassing your cameras. When you are smarter than your camera, you will be well on the way to capturing some outstanding images.

Technorati Tags:







Alpha A700 firmware upgraded to version 3,
upgrade appears Windows only

Thursday, December 27th, 2007

Sony has released another firmware update for the Sony Alpha A700, which will update the camera’s firmware to Version 3.

Sony says the new firmware will fix several issues with the A700. Sony discovered that occasionally an Alpha A700 SLR would stop responding with the Access lamp lit after capturing several images in quick succession. It was also discovered that turning the A700 off in the “MR” mode could cause some settings to carry over to other modes.

The new firmware resolves both of these issues, as well as

  • Sharper images for pictures taken under low contrast conditions
  • Reduced noise for pictures taken at ISO 3200
  • Improved flash control for objects closer than 1 meter with non ADI controlled lenses

Sony suggests all Alpha A700 camera owners upgrade their camera if the firmware version is less than 3.

The serial numbers of the applicable A700 dSLR models follows:

  • DSLR-A700 (body) with serial numbers 0500001 - 0508500
  • DSLR-A700P (body bundled with 16-105 lens) with serial numbers 800001 - 800200
  • DSLR-A700K (body bundled with 18-70 lens) with serial numbers 1100001 - 1105600

Unfortunately, Mac and Linux users need not apply. The upgrade utility is supplied as a Windows .EXE file, so you will need a Windows box (or an Intel Mac running Bootcamp) to prepare the upgrade.

I’m rather disappointed in this, as it appears the only thing the EXE file does is extract the upgrade application. I could be wrong, possibly it needs some system resources. But it seems you run the EXE file and it extracts a file called DSCA700.APP, which you then copy to a Memory Card. The actual upgrade occurs when you insert the Memory Card into the camera and follow a sequence of steps to upgrade the camera from the card. (There is also a provision to upgrade through a USB cable if you simply can’t afford a $7.99 card reader to upgrade your $1500 camera.)

Since the camera doesn’t need to be connected to a computer during the upgrade, I don’t understand why Sony needed to use an EXE file for this — couldn’t they simply have used WinZip or something similar? That way any computer capable of unzipping the file (which would include Mac and Linux boxes) could transfer the application to a Compact Flash card or Memory Stick and proceed to upgrade their camera. As long as you can extract DSCA700.APP, you’re in business. Why select an extraction model that will only run under Windows?

Hopefully, Sony will realize that a large number of professional photographers use a strictly Mac workflow. They aren’t going to be happy if they are forced to scrounge up a Windows machine every time they have to upgrade their camera’s firmware. Just put all the resources in the upgrade app, zip it up and provide it to the users.

You can find the Alpha A700 version 3 update at the Sony support site.






Full frame sensor with image stabilization revisted

Friday, December 14th, 2007

There is intense interest in the yet unnamed and unannounced full frame Sony Alpha (possibly to be called the A900?) among Alphatracks readers. I recently received another e-mail suggesting further ideas regarding the full frame sensor with in-camera image stabilization problem. Or non-problem, depending on which theory you wish to follow.

This time around, Marek Kaszycki weighs in with his analysis of the situation.

I’m not an engineer, yet I’d like to provide another perspective on the possibilities of SSS working with a full frame sensor.

Looking at tests of stabilization systems, I can’t help but wonder about two things:

1. Effectiveness of stabilization overall.

2. Effect of lack of stabilization.

Starting with the latter, it’s fairly obvious that if you take a 3600×2400 image (ca 8.6 megapixels) and have a shake that causes smearing of fine detail across two pixels, you’re losing 50% of the linear resolution in that direction. Since losing 50% of resolution in one direction leads to the perception of losing half of the resolution overall (extra resolution in the other direction is redundant), this means losing 75% of the pixel count, reducing the perceived resolution down to 1800×1200, ie. ca. 2 megapixels. Worse shake leads to further image degradation with even further loss of resolution, down to unacceptable levels.

I used the images from some dpreview reviews for Minolta cameras:

http://www.dpreview.com/reviews/KonicaMinoltaA200/page7.asp

http://www.dpreview.com/reviews/KonicaMinolta7D/page19.asp

http://www.dpreview.com/reviews/KonicaMinoltaZ5/page6.asp

They have different sensor sizes and pixel counts, so I will use relative numbers.

The Z5 is 5 megapixels, 2560×1920, Dynax 7D is 6 megapixels, 3008×2000, and Dimage A200 is 8 megapixels, 3264×2448.

The Z5, at 420 mm equivalent focal length, produces a blur about 30 pixels long, the D7D, at 75 mm equivalent, about 15 pixels (at 1/4th, with AS on, curiously), and the A200 about 35 pixels. Relative number of pixels per frame height is: 1.5%, 0.75% and 1.4%.

Since D7D handily corrected blur at 1/8th of a second, which is almost ten times longer than ‘handholdable without stabilization’ 1/focal length rule, with about 0.5 pixel shift, it’s perfectly reasonable that the system has a three stop effectiveness with 0.75% frame height shift (0.12 mm movement of a 16 mm high sensor!).

Let’s say the system would correct for even more, and would move the frame within 4% around the sensor boundaries. This would correct about 5.5 stops slower than at the reciprocal of the focal length rule, while moving the sensor only about 0.96 mm up and down, and 1.44 mm left and right. Amazingly simple, let’s simplify that further and allow for 1.5 mm movement in both axes in both directions, which is a bit extreme.

Taking a full frame film gate, and a full frame shutter (both of which have sligthly larger clearance than 36×24 mm), as well as a full frame sensor, we lose 3 mm of the sensor to allow SSS to work. It boils down to 33×21 mm available area, or 31.5×21 mm to allow 3:2 aspect ratio. This means a “crop factor” of only 1.14x, making a 24 mm lens into a 27 mm one. Still a loss, but I think it’s an acceptable one.

What could Sony do to make us happy? In this rather extreme example (3 mm movement), three things:

1. Setting SSS effectiveness in the menu. Restrict movement to 0.25 0.5, 0.75, 1, 1.5, 2, 2.5 and 3 mm, independently for horizontal and vertical axes (e.g. 2 mm for vertical axis and 3 mm for horizontal, making image area equal to 33×22 mm, or less than 1.1x crop).

2. Letting users choose whether to always crop the image to preset restricted movement, leave it as it is, to crop it in software, or crop it automagically (the camera would crop based on restricted movement and detected underexposure).

3. When SSS is off, no crop occurs, unless preset in the menu (automatic mask in the viewfinder).

Back to the 3600×2400 sensor (8.64 megapixels), a 31.5×21 mm available area is 3150×2100 pixels, 6.61 megapixels. Not a huge loss in resolution, either (linear: 14%, planar: 23%).

All of these options are possible, no extra gain, or exposure increase is necessary, the sensor is full frame when doing critical work, and slightly smaller when not.

Regards, Marek Kaszycki

Past posts in this series:

Technorati tags






Sony Alpha grip sensor for US market, not Europe

Wednesday, November 28th, 2007

So how do you tell the US version of the Sony Alpha A700 apart from it’s European cousin? The US version includes Sony’s version of the Minolta Grip Sensor, while the European models don’t.

This isn’t a case of Sony short changing European customers. Although the details are rather murky, it appears that the Grip Switch is made of a nickel alloy, and the European Union recommends that nickel not be used in proximity to human skin for lengthy periods. So apparently Sony decided to follow along with the recommendations and simply eliminated the grip sensor from the Alpha A700 models bound for Europe. This also applies to the add on vertical grip, the European models of both the camera and the accessory grip are sans the Minolta style grip sensor.

Here’s where everything gets sort of fuzzy. Apparently the recommendation is just that: a recommendation, not a law. So Sony probably wouldn’t have broken any regulations by including the grip sensor in European Alphas. No one seems to know whether Sony simply chose to voluntarily remove the sensor for the Alpha models sold on the European continent, or whether the European Union used some political muscle to force their hand.

No more phantom Eye-Start problems

Sony A700 grip sensor

Grip sensor on the Sony Alpha A700 helps prevent unwanted Eye-Start trigger, but don’t look for it in Europe.

Photo: Sony Corp, used with permission

Basically, the grip sensor is a useful addition to the Eye-Start system available in the Alpha A100 and many Minolta cameras. Eye-Start allows the camera to be in a low power standby mode until you raise the camera to your eye. When the camera senses your eye near the view finder, the camera changes to full operation, including metering, auto focusing, image stabilization, etc. When you move the camera away from your face, it returns to standby — a feature that can greatly extend battery life.

The problem with the eye-start system is that it can’t always tell your eye from your shirt sleeve or your pant’s pocket. Dangle an A100 on a neck strap while you wander about and the camera may turn on and off constantly as the camera falls against your clothing. It thinks it senses your eye, so it powers up the LCD, and attempts to meter and focus, even though you have no intention of shooting anything.

You can turn the camera off, but then if something really interesting turns up, you have to hope you don’t miss the shot while the camera goes through it’s start up sequence. Neither choice is very appealing, and many people have criticized the eye-start system because of the phantom power up cycles.

Sony listens to Alpha users

As I’ve said before, it appears that Sony listens to it’s customers, because they have corrected a number of issues that people had with the A100. One of the things they did was reach back into Minolta film SLR technology to bring back the grip sensor. If you have the grip sensor mode turned on, the A700 will remain in standby, even if it thinks you are looking through the viewfinder. Only when your hand is covering the sensor and your eye is at the viewfinder does the camera become fully operational. Or least that’s the way US versions of the A700 operate.

Grip sensor is not a pressure switch

If you are wondering why the switch has to be made of nickel, instead of some other material, the grip sensor is not pressure sensitive. Instead it actually uses a small electrical field across your skin to sense that your hand is there. So the sensor has to be made of a conductive material and Sony apparently couldn’t find an adequate substitute for nickel.

Many have pointed out the European Union recommendation are aimed primarily at things like ear rings and other body piercing jewelry. Simply touching nickel probably doesn’t present much danger for most users. Some people apparently have or are prone to develop allergic reactions to nickel. Let’s not forget the electrical current involved in the switch. It’s very small, but perhaps it could aggravate an allergy in someone using the Sony A700.

So no grip sensor for the Europeans, at least until Sony finds another material for the sensor. Does this mean that US cameras will cause allergies? I rather doubt it. There might be some people with a severe skin sensitivity that could be adversely affected by the nickel in the sensor. On the other hand, you find nickel in all sorts of products, from automotive controls to fountain pens to silverware. Most people aren’t bothered by these items — I sort of doubt that a camera control will have a much greater effect. Of course, I am not a doctor, so if you have a nickel allergy, you might want to discuss this with your medical adviser.

Remember that Minolta has made long use of a similar nickel grip sensor in the Maxxum/Dynax 7 and 9 as well as the A2 and A200. I haven’t heard of a rash (no pun intended) of photographers developing skin allergies from using these older Minoltas.

Why choose a electrical sensor over a switch?

Which leads to my next question, why exactly did Minolta choose to use the nickel sensor in the first place? A simple pressure switch would be cheaper, could be made of any hard materiel and could even be used with gloves on — something that can’t be said of the nickel sensor.

About the only reason I can think of for choosing the nickel sensor is that if you left the camera on when you put in a camera bag, padding or other equipment might possibly trigger both a pressure switch and the eye start system — running down the battery. Because the grip sensor actually measures current through your skin, it can tell the difference between a hunk of foam rubber and the fingers of your hand.

The Senswitch — forgotten Minolta technology

Yet Minolta long ago developed technology that could eliminate false triggers and didn’t require any electrical skin contact. Im refereeing to the Senswitch that appeared on the Minolta XK cameras in the mid seventies.

Minolta XK Senswitch

Minolta Senswitch is neatly hidden inside the grip on the XK Motor

The Senswitch was just simple pressure switch that turned the camera meter on when you touched it. It saved battery power, because the camera could be left in standby until the user pressed the switch.

I’ve heard that a lot of XK owners didn’t like the Senswitch on the basic XK model. It was just a long strip on the front of the camera, and apparently many photographers had trouble engaging the switch consistently. And it would also be vulnerable to pressure from other sources like the foam padding that could press upon it and drain the battery.

Minolta, however, followed up the plain vanilla XK with the incredible XK-Motor. This wonderful camera was my main shooting machine for many years, I loved the Senswitch on the XK-M, because Minolta moved it from the front of the camera to the inside of the built in grip. You would have to work awfully hard to miss engaging the Senswitch on the XK-M. If you were holding the camera by the grip, your middle-finger just naturally fell upon the switch. You almost couldn’t miss it.

Located deep inside the recess of the grip, the XK-Motor’s Senswitch was also fairly invulnerable to being pressed accidently by something other then your finger tip. I’m not saying it would be impossible for a hunk of padding or gear to engage it…but it would be a very rare occurrence. I never saw it happen in all the years I shot with my XK, Then again, I usually switched the camera off when it put in the bag.

One final thing. The XK-Motor’s switch was made of some sort of hard plastic , so you could use it with gloves.

It seems to me that Minolta had almost fool proof system with the XK-Motor’s Senswitch. Too bad Sony didn’t study the XK-M grip before opting for the nickel grip switch on the A700. It works even with gloves, it is fairly safe from accidental triggering and it won’t cause skin allergies. Oh yeah, they could sell the Senswitch in Europe as well.

Technorati Tags






Sony A700 battery life analyzed by engineer

Friday, November 23rd, 2007

Bart Pasquale, who last appeared on these pages with his insightful comments on the Sony Alpha Full Fame - Antishake question, is back with a detailed analysis of the Sony battery for the A700 Alpha and it’s lack of compatibility with the A100 batteries.

The complete text of Bert’s email follows:

Hello Tom!

Here’s some info regarding the new Alpha A700 battery, the NP-FM500H. As you may know, there is a grove in the new battery, and a ridge in the A700 battery compartment, which prevents interchangeability with the A100 battery. I contacted my usual 3rd-party battery suppler from eBay, and he said Sony has blocked the manufacturing of NP-FM500H compatibles. It was not clear weather this is legal/political maneuvering, or simply an issue being able to reproduce the circuitry required for A700 to display the % charge remaining, but he expected something out of Taiwan by January. What he did know is that one person reported to him filing out the ridge inside their A700, and the A100 batteries did NOT power the A700.

A700 Battery

A700 battery shown being loaded into new vertical grip. Notice the groove that allows battery to fit the A700 compartment.

Photo: Sony Corp, used with permission

Being the anti pay-for- proprietary-items consumer that I am, I find myself waiting it out to avoid buying a $80 Sony battery, understanding the implications of battery consumption suddenly became very important. So, I spent the past day and a half draining a fully-charged battery under controlled conditions. My goal was simple: take bursts of pictures throughout the day at various intervals, review the pictures, delete a few, and record the image count and battery charge remaining. Many batteries fall off very quickly once they indicate “half charged”, but SONY claims the new battery’s reported % is “accurate”, and the battery is good for 650 shots. Curiously, the second day I had the camera, I cranked off 900 pictures on a photo shoot, but the battery indicator still showed being more than half-charged. Let’s examine…

I began with a fully charged battery two days ago, At various intervals (a few hours to a few minutes) I would fire off 50-100 images, and review them, at a medium pace, deleting every few images as I went. I was shooting compressed RAW, anti-shake on, DRO standard. This simulates my camera use in the studio or shooting on location. After the first 50%, I continued to review the imagers quickly, but did not delete many images, as I might do to conserve battery power while on a shoot. The results are summarized in the following table:

Shots % Charge Charge Drain Rate
Day One: 0 100%  
  550 75% 1% = 22 frames
  1200 50% 1% = 26 frames
Day Two: 1800 25% 1% = 24 frames
  2600 1% 1% = 32 frames
  3080 Dead 1% = 400 frames

Over 3,000 shots from a single charge! I’ve never worked so hard to drain a battery. That was the battery’s third charge, so we’ll see how that changes after a couple dozen cycles, and how the generic versions hold up to that when they finally do come out. A few other statistics:

  • Reviewing 150 images uses 1% of battery charge
  • Leaving the display on for about 5 minutes uses 1% of battery charge
  • Overnight, the battery looses about 2%-3% of it’s charge
  • Straight shooting without reviewing images can achieve 30+ frames per percent at any phase in the charge cycle.
  • Once the battery indicates zero charge, you can still quickly eek out a few hundred shots!
  • This is about an extra 12% of charge not indicated in the charge level.

During recharge, the first 15 minutes were spent to achieve 1% charge status back. After that, it was pretty linear, adding about 12% every 15 minutes achieving 86% after 2 hours of charging. The battery indicated “100%” about 35 minutes later, but continued to take a charge for an additional 15 minutes to top it off. So, one could theoretically shoot 400 frames, recharge for 15 minutes while the model changes, and never run out of charge. Of course, YMMV; I don’t know how consistent one battery will be to the next. Happy shooting all!

- Bert Pasquale

BTW, I have a couple well-cared-for A100’s for sale! (With several extra batteries…)

Wow, that is a pretty exhaustive (no pun intended) sample of the battery life of the NP-FM500H when used in the A700.

I found it interesting that someone would actually go as far as removing the locking ridge from a new A700 to try to use the older battery. The fact that the NP-FM55H (used in the A100) would not power the A700 indicates to me that the ridge serves a purpose beyond an attempt to sell more batteries. It’s easy to point to an incompatibility like this and suggest it is being done to sell more batteries. I’ve found that manufacturers rarely make components less compatible just to move additional product. They have to stock additional components, manufacture additional components and distribute two lines of batteries instead of one. Usually is in the company’s best interest to stock and sell as many common items as they can, because that drives manufacturing and stocking cost down.

That said, several printer manufactures have taken great pains to make sure only their own cartridges work with their hardware. So who knows? This could be Sony’s attempt to eliminate after-market battery competition, but I doubt it. Usually when an electronic product carries a lock out ridge like the one described above, it is to prevent using a non-compatible item that might cause damage to the devise. The upshot is A100 batteries are NOT compatible with the A700 — don’t try to reengineer the camera or battery in attempt to make them work.

It Bert’s tests are indicative of how long a typical NP-FM500H will last, it seems like for most shooters a single battery will cover most assignments. A second battery, either used as a spare or inserted in the A700 Vertical grip should be more then sufficient power for most A700 shooters.

Thanks again Bert, this is a great report. If anyone is interested in Bert’s A100 gear, email me and I will get you in touch.

Technorati Tags







Who is that guy?


Web designer and photographer Tom Bonner has three decades of experience with Minolta camera equipment

Hi. I'm Tom Bonner and I've been shooting with Minolta SLRs for over three decades.

Alphatracks is my attempt to follow Sony's maneuvers in the dSLR market, and at the same time provide a resource for Minolta film and digital SLR users. A-mount shooters have to watch each other's backs, because there aren't as many of us. At least not for now....

You can view my design portfolio at http://adventuresindesign.com.


Bad Behavior has blocked 329 access attempts in the last 7 days.

Close
E-mail It