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Archive 2022 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?

  
 
billsamuels
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p.1 #1 · p.1 #1 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


I've been slowly taking photos of my better slides from the 80's and 90's when I young and had a Olympus OM2S and shared lenses with my dad. My favorite lens was an Olympus/Zuko 28mm lens that I used all the time, but the one film I lived by was Kodachrome 25. In fact, I still have a couple of rolls, which besides the fact that it can never be developed any longer even if it still was capable of producing photos, I saw that you could buy rolls for $60/roll of Kodachrome 25.

I've been transferring them to my Canon 5DS-R using a mount set-up I put together a while ago and a Tamron 90mm Macro lens. I use a 9.5W, 800K LED white bulb as back-lighting, which is plenty of back-lighting to create a fairly fast and sharp photo.

Unfortunately, most of these photos aren't sharp like today's digital Canon photos are. Now that I have a superior camera and lenses, I realize just how crappy those old Olympus lenses were. I've used it on my Canon and they aren't any better on a Canon body. Here's my question:

A large number of these old Kodachrome photos seem to have white pixels along the lower end of the skies. In this photo, it's real clear towards the Right Bottom of the sky. Do you know what's causing it and more important, what can I do to get rid of it? I thought there's gotta be something in LR to get rid of it, but I can't find it. I've tried every knob I'm aware of in LR, so maybe you know what it is and how to rid it without changing the photo too much?
Thanks.
Bill





What is the pixel effect in the top right area of photo in sky, just above mountain?




Apr 14, 2022 at 03:00 AM
Camperjim
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p.1 #2 · p.1 #2 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


Clearly this technique is not working well. You have a pixelated sky with banding, halos around the mountain, excessive graininess, overly vivid colors with unnatural looking colors, poor resolution, lack of sharpness, etc.

I have no idea how much of this is due to the duplication technique and how much is due to the quality of the slides themselves. I would start by viewing projected slides and then assess the inherent image quality. You might find they will be memories but of low quality. Or you might find your technique is not working. If the slides look decent, you might want to just get a scanner. You can get a decent scanner in the $100-200 range. Mine came with software specified for removing dust and processing slides and it also came with a holder to duplicate several slides with each scan.

If you need additional help on your camera technique, perhaps others can help. You might also look for a more appropriate forum. This is for critiques and less about technical concerns.



Apr 14, 2022 at 05:56 AM
liftedspirit
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p.1 #3 · p.1 #3 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


First of all, as CamperJim noted, you need to see if the issue is on the slide itself or in the conversion. Use a loupe to look at those areas of sky on the negative and see if they're there. If so, there's not much you can do, but read on...if not, then the issue is with your conversion.

I use a Kaiser slimlite plano light table. Color temp is 5000 K, so much more neutral than the light you're using, and it's USB powered with a wattage of 3.6W. It could be that your backlight is creating some of the wonkiness. Are you color correcting for the 800 K (are you sure it's 800 and not 8000) light bulb? You could also try picking up a gray card and using that. Snap one photo with the gray card in the image and another immediately after without. In LR, use the white balance color selector and click on the gray card. That will give you the white balance settings for the proper coloring. (as it was in the slide, mind you - there are usually some color grading with different films) Apply those white balance settings to the image without the gray card.

Finally, dust is the devil when it comes to film, and converting film. I find Photoshop hugely beneficial in that it has some fairly automated ways of removing dust spots from the image. That dust spot removal might help alleviate some of those spots if they're indeed on the slide itself. You could also try in Photoshop using a layer and blurring those areas so the dots aren't noticeable as dots.

Finally, make sure the image itself is flat - place a piece of glass on top of the slide, and that the camera sensor is as close to parallel the slide as possible. It may not make the images tack sharp as you say the lens itself isn't sharp, but you won't have sharpness inconsistencies. (which BTW, I don't notice here) And truthfully, tack sharpness is often unnecessary.



Apr 14, 2022 at 11:49 AM
billsamuels
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p.1 #4 · p.1 #4 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


liftedspirit wrote:
First of all, as CamperJim noted, you need to see if the issue is on the slide itself or in the conversion. Use a loupe to look at those areas of sky on the negative and see if they're there. If so, there's not much you can do, but read on...if not, then the issue is with your conversion.

I use a Kaiser slimlite plano light table. Color temp is 5000 K, so much more neutral than the light you're using, and it's USB powered with a wattage of 3.6W. It could be that your backlight is creating some of the
...Show more

Thanks for the honesty. I agree with both of you on these comments. The problem was I was young and although I had a decent camera, it wasn't a great camera (Olympus OM 2S) and Oympus lenses, which weren't great lenses. Now that I've owned Canon full-frame cameras and used both Canon L lenses, their non-pro lenses and both Zeiss for Canon lenses and modified some Leica lenses for use on my Canon 5DSR, I realize what a complete piece of crap the Olympus system was. My guess is the digitals are better, but the old OM film cameras and lenses just didn't have the quality that the next step up like Canon and Nikon had even back then.

My Dad owned the lenses but gave me a new Olympus OM2S when I was a teenager, but he also had a Mamiya and that was a pretty sharp camera in comparison. I got it many years later, but the camera leaked light, a lot of light by the time I got ahold of it.

One more thing - check out this photo I posted last night around the same time:
https://www.fredmiranda.com/forum/topic/1752130

Also taken with the same camera, same lens, same Kodachrome 25 film, perhaps even the same trip. I retook the slides with my Canon around the same week. I think the photo is better, not Canon sharp, but better.
Thanks.



Apr 15, 2022 at 03:46 AM
billsamuels
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p.1 #5 · p.1 #5 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


Camperjim wrote:
Clearly this technique is not working well. You have a pixelated sky with banding, halos around the mountain, excessive graininess, overly vivid colors with unnatural looking colors, poor resolution, lack of sharpness, etc.

I have no idea how much of this is due to the duplication technique and how much is due to the quality of the slides themselves. I would start by viewing projected slides and then assess the inherent image quality. You might find they will be memories but of low quality. Or you might find your technique is not working. If the slides look decent, you might want
...Show more

The unnatural colors are the colors that the slide had. Kodachrome 25 was an over-saturated slide film. There are pre-sets made for PS and LR that sell for $50+ that are called Kodachrome Presets that match the over-saturation of Kodachrome films. I agree though with the rest of the comments as well. It may just have been an especially crappy photo, see comments below.
Thanks.



Apr 15, 2022 at 03:48 AM
Camperjim
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p.1 #6 · p.1 #6 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


Bill, your other photo posted on the Landscape forum is better. Better colors and more sharpness and resolution. The colors are indeed highly saturated but they appear more natural with more natural hues for especially for the greens and yellows. Graininess and banding in the sky are still present.

Again, I would suggest comparing your original slides. Perhaps the first slide was a bit out of focus or was the lack of sharpness and loss of resolution due to the reproduction technique? I would also wonder about your original complaint about white pixels by which I think you mean the halos in the sky around mountain peaks and other objects.

I have only tried to digitize my slides using a scanner. It worked very well without halos, without excessive graininess, without banding and the images typically had good resolution and sharpness. I did have issues with dust spots. I also had issues with color shifts. Some of the images were pretty bad with lots of fading. It has been a long, long time but as I remember it, colors could fade just due to projection. Projection means a lot of intense light shining through the slides. I see some variation in color quality for slides from the same roll but even more for different types of films. Some of my oldest slides on ASA 25 or 50 film are still good. Many of the ASA 400 Fuji slides have deteriorated quite a bit.






Apr 15, 2022 at 07:29 AM
AuntiPode
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p.1 #7 · p.1 #7 · Complexities of transfering Kodachrome 25 - Strange Pixels in Sky?


You might try your Canon's HDR mode to better deal with Kodachrome's high natural contrast made more extreme because the process of side copying usually adds to the effective contrast. Also, what camera color space did you use to do the copying? Did you shoot raw or jpeg? If you used jpeg, you might try shooting raw. You could try shooting with a wider camera color space.


Apr 15, 2022 at 06:46 PM





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