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Scan of 1968 Kodak Instamatic negative produced this. Not bad for a cheap, plastic lens camera, but even at this reduced size you can see it is loaded with dust marks.

Tip of the Week: This week’s tip involves a free piece of software from — surprise — Polaroid Corporation. (PRDCQ) You’ve no doubt heard that Polaroid recently stopped production of their instant film stocks. That is a sad event for those enjoy shooting with Polaroid cameras; but I’m more concerned with the survival of Polaroid software. More specifically, Polaroid’s free Dust and Scratches application.

If you are anything like me, you probably have a fair collection of film negatives. Even if you shoot nothing but digital today, some of your best work may have been captured on film.

Red marks indicate the mask created by the Polaroid software. When you clean the image, only the red areas will be effected.

If you want to use some of those older film images in today’s digital world, you basically have two choices. You can pay a lab to create digital images from your negatives; or you scan the negatives yourself. Professional scanning tends to be expensive, so if you have more than a handful of images, a film scanner may be you best choice.

Negative scanning, however can be quite labor intensive. One of the biggest problems, particularity with older negatives, is dirt and scratches. Even tiny particles of dust will be magnified when the resulting scan is enlarged to a usable size. You can clone out the dust marks with a program like Photoshop, but if the dust spots are numerous, retouching becomes extremely time consuming.

Scanner manufacturers usually incorporate some form of dust removal in their scanners. These systems can be effective, but you don’t usually have much control over a hardware based dust removal system.

Image on the left shows a portion the image as it came from the scanner.

As you can see it would take hours to spot all the dust marks. Right image shows the same area after cleaning with the Polaroid Dust and Scratch Removal software. There is still work to be done, but more than 80% of the spots are gone. Tweaking the settings might eliminate even more marks.

Enter Polaroid’s Dust and Scratches Removal software. In the past, Polaroid manufactured a number of film and flat-bed scanners. I’m not sure if they are still producing this equipment, as according to the Polaroid website, most of the scanning equipment is no longer in production.

Fortunately, much of the software is still available online.

“So what?” you say. “I don’t own a Polaroid scanner.”

I’ll let you in on a secret. I don’t own a Polaroid scanner either. But I use Polaroid software with my Minolta Dimage Scan Dual III film scanner. I also use it with my Microtek flat bed scanner.

I first discovered Polaroid Dust and Scratch Removal Software a few years ago. I was scanning in a number of old 126 negatives taken when I was in my early teens. Besides being over 40 years old, it appears the original drug store processing lab wasn’t very concerned with cleanliness. The negs were a mess.

The Minolta Dimage III isn’t designed to scan 126 negatives, but 126 and 35mm negs are exactly the same height. So I was able to insert the 126 strips into the Minolta’s 35mm film carrier.

Because the carrier is not intended for the 126 format, I lost about 1/8″ at the top of each frame. That was no a big deal. What was a big deal was the hundreds of dust specs sprinkled over the final scans.

Of course there will be times the software thinks a crucial part of the image is dust or dirt.

Notice how the cleaning process has removed some of the lettering on this race car (left.)

After reverting the image, I use the select tool to make a loose selection around the effected letters. Now there are no red marks around the lettering, so the cleaning process will ignore this section of the image.

Retouching all those dust mites was out of the question, so I started to cast around for some sort of chemical cleaner. I doing so, I came across Polaroid’s software.

I wasn’t expecting much from Polaroid’s offering. I’ve used other dust removal software, including the despeckle filter in Adobe Photoshop. All of the applications I tried in the past remove dust specs by applying a soft blur to the image. This eliminates the visible dust, but you lose overall sharpness. The decrease in sharpness isn’t overwhelming, but I am of the opinion that any loss of sharpness is unacceptable.

I was pleasantly surprised to find Polaroid D&S software worked differently then the old “blur the image to hide the dust” applications. In the first stage of the process, the application analyzes the image and creates what appears to be vector mask of the image. Anything that appears to be a dust or scratch is flagged. You have a great deal of control over the masking process, so you can eliminate flaws of various sizes, as well as dark and light dust marks.

Because the program could identify small parts of the image as dust, Polaroid allows you to edit the mask. If the program confuses fine lines in the image with dust, you can edit the mask to protect the fine details.

Once the image mask is created, you can “clean” the image. This removes the masked imperfections without touching the unmasked zones. If you aren’t happy with the results you can adjust the settings and clean the image again.

The program is fairly fast. On my Powermac G5, creating a fairly detailed mask took about 30 seconds, while cleaning the image took another 40 seconds. Not exactly speedy, but far quicker than spotting hundreds of dust specs one by one.

The application does involve a bit of a learning curve, but once you learn how the settings work, it is simple and straight-forward.

The price tag for all this high-tech magic? How about zero. You can download the Dust and Scratches program for free. Not a demo or feature limited sample — you get the full working application with no restriction.

Want more? It is available for both Mac and Windows. In addition, you can choose between a stand-alone application or a Photoshop plugin. Because you load your images into the program after you have scanned them, there is no hardware compatibilities to be concerned with. As long as your scanner can create a standard TIFF or JPEG, you can use the software to clean the image.

The only problem I have experienced is that some images won’t load into the program. I use Vuescan as my scanner software for both my slide and flatbed scanners. For reasons I don’t understand, most of the scans saved out of Vuescan aren’t recognized by Polaroid’s software. Opening the image in Photoshop and re-saving as either a TIFF or JPEG generally fixes the problem. Sometimes I have had to save files several times before I could get the Dust and Scratches program to recognize images.

This isn’t Polaroid’s problem, as the software is designed to be used with their own scanning hardware. They offer no guarantee that it will work with a Minolta scanner. Polaroid should be congratulated for offering the software to anyone who wants to use it. If there is a problem with files created with non-Poloroid software and hardware, that should not be Polaroid’s concern.

The final step is to clone out any marks the software didn’t find and to color balance the image.

Even with the file opening hassles, I find Polaroid’s Dust and Scratch Removal software to be a huge time saver. Poloroid is still in business and they are even said to be on the verge of releasing a new digital camera with a built in printer — continuing the “instant print” legacy.

Despite this, you can’t count on the dust removal software being available in the future. My suggestion is that you download the software now, even if you don’t have a need for it right now. If you find yourself with a box full of dusty, scratched negatives, you will be awfully glad you did.

Download Poloroid Dust and Scratch Removal Utility

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dust and scratch removal
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Tom Bonner
Alphatracks

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Steady as you go! The amazing strap trick in action.

Tip of the Week This week’s trick concerns a new way to hold your dSLR. It should work with any dSLR or SLR and the best thing is it doesn’t require any extra equipment or expense.

A few weeks back, I was on an outdoor shoot on a large piece of property. I had finished my photography and I passed up the offer of a ride back to my truck, preferring to hike through the woods. Before I set out, someone offered me a glass of Gatorade.

So I started down the trail with the drink in my left hand and carrying my Sony dSLR in my right. I had a strap on the camera, but I let it dangle free and just carried the camera by the grip.

I spotted a squirrel next to the trail and decided it was worth grabbing an image. I had left the A350 on, so I was ready to shoot. Well, almost. My problem was the sports drink.

I figured if I put the drink down on the ground, the squirrel might scamper off. I considered simply dropping the plastic cup, but I feared I would end up with liquid all over my jeans and the impact would scare my quarry away.

The third option would be to steady the lens while still holding the cup with my left hand. But I’ve made enough bone-head mistakes in my life to realize that holding several ounces of sticky red liquid that close to all that pricey electronics was a disaster waiting to happen.

So I concluded the only course of action was to shoot one handed, holding the camera in my right hand and trusting Super Steady Shot to keep the camera and lens from shaking.

As I raised the camera to shoot, the loose strap brushed against my left hand. Without thinking, I wrapped my fingers around the strap and carefully pulled downward. At the same time I kept a steady upward pressure on the camera. I was amazed how steady the camera felt.

Long story short, the squirrel dashed away before I could shoot. But I took several landscape images using the strap trick. I couldn’t believe how steady the the rig made the camera.

Not long after that, I was shooting the the image series inside the Apple Hill general store. When I found I needed to shoot with shutter speeds around 1/10 second, I remembered the strap trick.

This time there was no squirrel or sports drink, but pulling upward against the strap allowed me to shoot at long shutter speeds without shaking.

You can see a sample image taken with this technique at 1/10 second. Super Steady Shot may have been a factor in the image sharpness, but I’m convinced the strap trick contributed to keeping the image sharp.

Some of you may recognize a strong similarity to the ever popular “poor man’s tripod.” I first heard about the poor man’s tripod decades ago. It is apparently still arround, as just this year, I have read about it on at least three blogs and heard it described on two different podcasts.

Basically the idea behind the PMT involves tying a string to a screw inserted into the camera’s tripod mount. You step on the string and pull up on the camera, and the resulting tension keeps the camera steady even at long shutter speeds.

Obviously this strap trick has a lot in common with the PMT. The PMT may offer greater steadiness, since the ground can’t move when you step on the string.

But the strap trick offers some real advantages. The most important thing is that you don’t have to make anything to use the trick. If the strap is already on your camera, you are ready to use it to steady your images. Even if I took the time to make a PMT, (I never have) chances are I wouldn’t have it with me when I needed it. But the strap is usually with me whenever I haul out my cameras.

I haven’t tried this with any really long lenses as yet. I know it works very well with lenses in the 18-85mm range. I intend to try it out with my beercan in the near future, to see how well it works at 210mm.

Why not try it yourself and let me know what you think. As I said in the opener, it won’t cost you anything.

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camera strap
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Tom Bonner
Alphatracks

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