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Author Topic: Medium Format DSLR as film scanner  (Read 1472 times)
Dave Gurtcheff
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« on: January 24, 2014, 11:49:47 AM »
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I have a collection of priceless family negatives made by my father between 1935 and 1940, all B&W 645 size, all made with a state of the art Zeiss camera with Tessar lens, Compur shutter. I have a Polaroid 120 Sprint Scan film scanner that died, with no Vendor Support anymore. I have an Epson V700 flat bed that I resorted to using to film scan, but I cannot help but think I can get better quality. I want the quality to make routine 11"x14" prints, and occasionally 16"x20" prints.
Here is my plan:
I ordered from B&H a high quality focusing rail, with Arca type quick release. I plan on using my Pentax 645D, with quick release plate, and 120mm f4 manual focus Pentax 645 lens which will go to 1:1. I have a high quality light box with even illumination. I intend to make a horizontal negative copy rig, probably using a piece of 1"x 6" wood, bolting the rail to it, and turning the light box on it's side, and fastening it to the 1"x6". I have an electronic cable release, and the 645D has mirror lock up. As a test before I ordered the rail, I set the camera and lens on my kitchen counter, and turned the slide box on it's side, taped a negative to it and was easily able to focus 1 to 1 on the negative. Fine adjustments were needed by slightly moving the camera, thus my idea to buy a geared rigid rail. Anyone tried this? I could even bracket exposures and combine in HDR software, if required.
Thanks in advance
Dave in NJ
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digitaldog
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« Reply #1 on: January 24, 2014, 12:18:47 PM »
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This is being discussed (but with DSLR) here:
http://photo.net/digital-darkroom-forum/00cKbq
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Andrew Rodney
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Kirk Gittings
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« Reply #2 on: January 24, 2014, 12:23:34 PM »
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Also long interest and mockups being done here-all the threads on DSLR Scanner. http://www.largeformatphotography.info/forum/forumdisplay.php?31-LF-DIY-(Do-It-Yourself)
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Thanks,
Kirk

Kirk Gittings
Architecture and Landscape Photography
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LIGHT+SPACE+STRUCTURE (blog)
Dave Gurtcheff
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« Reply #3 on: January 24, 2014, 10:05:50 PM »
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Thanks all. I will check out the links.
Dave
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artobest
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« Reply #4 on: January 30, 2014, 05:44:34 AM »
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If it doesn't work out, consider buying a betterscanning.com holder for your Epson and calibrating it, then scanning your B&W negs are colour positives and using only the green channel. This way, the Epson is a pretty sharp B&W scanner.
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