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07-05-2016, 08:14 PM   #1
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Using the K-1 as a "slide digitizer"

Haven't heard anyone mention this capability, one that I've been longing for since the *istDs. The K-1 being full-frame, I can now use my bellows system to duplicate slides, the whole slide, not just a crop out of the center. I'm jazzed! Now, I need to practice to figure out the best procedure and lens to use. These two were just from a quick test. Using my original Pentax M 50/1.7 lens and the Vivitar bellows system, (from back in the day when Vivitar made really good stuff).

Originally taken in 1980 and probably 1983 or 1984 with my MX and probably the M50/1.7 and most likely Kodachrome 25 or Ektachrome 100 , (about all I shot unless I was using Tri-X 400).

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07-05-2016, 08:56 PM   #2
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Pixel shift can potentially be really good for this application. Also, stop down a bit to make sure those corners look good. Once you get everything aligned and focused perfectly, I'm sure you'll get fantastic results.

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07-05-2016, 11:56 PM   #3
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QuoteOriginally posted by volosong Quote
Using the K-1 as a "slide digitizer"

Wonderful application of " new " meets " old."
07-06-2016, 03:32 AM   #4
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I use pixel shift when using my duplicator. Not the fastest route to take but the result is worth it.

07-06-2016, 04:29 AM   #5
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Thanks for the suggestion about using pixel shifting. Hadn't thought about that. I'll have to read up on that feature.
07-06-2016, 06:54 AM   #6
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Just in case anyone is interested, the m42 Auto Bellows does NOT fit the K-1, as there is not enough clearance below the mount to attach it with the m42 to K adapter.

Thought this would be a good place to let everyone know...
07-06-2016, 09:16 AM   #7
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QuoteOriginally posted by dcshooter Quote
Just in case anyone is interested, the m42 Auto Bellows does NOT fit the K-1, as there is not enough clearance below the mount to attach it with the m42 to K adapter.

Thought this would be a good place to let everyone know...
If you put an extentiontube first, then you will be able to fit it?
07-06-2016, 09:21 AM   #8
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Yeah, that seems like a viable workaround. Now if only I hadn't sold all my m42 tubes....

QuoteOriginally posted by Tjompen1968 Quote
If you put an extentiontube first, then you will be able to fit it?


07-06-2016, 09:47 AM - 1 Like   #9
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Ironic: the M50 f1.7 took both the film original and 30+ years later converted it to digital. Oh the durability and versatility of Pentax optics!
07-07-2016, 02:22 AM   #10
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I've done this with a K20D. Your K-1 will have much better dynamic range, which will be great for scanning slides.

I used a D-FA100 macro without bellows or tubes. The flat field can be useful for copy work. As is said above, stop down a bit.

It can be useful to create a mask with an opening for light to go through the slide. This keeps stray light from going around the slide and into the lens. I also put a tiny shelf below the opening to hold the slide in position while the board is almost vertical. Very quick to change and position slides. Use the camera on a tripod with the 2-second timer.

For a light source, a flash reflected against a pure white board may be better than a light table whose bulbs are of questionable color rendition.

For scanning print film, I used a dark blue filter in front of the lens to cancel much of the orange mask, hopefully reducing the dynamic range. You can try it both ways and see what works.

Every generation of new camera tempts me to get one just to re-scan old slides. Our K20D has gone missing recently, leaving a K10D and two istDs cameras, so perhaps it's almost time...!
07-07-2016, 03:00 AM   #11
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Pentax also offers a dedicated film duplicator both for K cameras and for the 645Z. Only sold in Japan, though, and not cheap.

Pentax Film Duplicator Overview - CP+ 2014 | PentaxForums.com

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07-07-2016, 03:41 AM   #12
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What does not cheap mean?
And how does the result compare to a dedicated film scanner?
07-07-2016, 03:52 AM   #13
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QuoteOriginally posted by Pål Jensen Quote
What does not cheap mean?
Equivalent of almost $1200. OUCH!
07-07-2016, 04:25 AM   #14
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A friend of mine set up a rig using a cheap copy stand and an old Canon DSLR with a 6 megapixel sensor and a macro lens. He had a local machine shop fabricate film and transparency holders to speed up the process. He does not have a lot of money into it either. Under $1,000. He tethered it to Lightroom and is digitizing his entire families photo archives. Close to 100,000 images. This includes, prints, negatives and transparencies. He has built custom correction curves for the various brands of color negative films used over the years. This goes back a few generation and his whole family was/is photo nuts. Once he gets it up and running he can easily do a couple of hundred images and hour. That include image capture, processing and storage in the appropriate folders. From this he is making DVD's. Amazing to watch once he gets it going. Keeps him busy when the weather is lousy.

He is a Nikon user with a very nice setup too. He got the old Canon for it's tethering capabilities and 6 megapixels seems to be working fine for what he needs to have done. I wish I was that clever.
07-07-2016, 05:34 AM   #15
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Just as there's always someone on the road who wants to drive faster, there's always someone who seems more clever than you. The irony? There are probably many who think you are the one who is more clever.
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