tom_kondrat Posted June 10, 2021 Share Posted June 10, 2021 Most of my photographs have darker edges (especially on the sides). I use Mamiya RB67 + 65mm f4 K/L. What could be the problem? Link to comment Share on other sites More sharing options...
q.g._de_bakker Posted June 10, 2021 Share Posted June 10, 2021 The problem is in scanning. Light of the scanner lamp bleeds around the negative, and the software turns it into this orangy colour. So mask properly when scanning. 1 Link to comment Share on other sites More sharing options...
laurencecochrane Posted June 10, 2021 Share Posted June 10, 2021 You do not say but Is this a Pro SD ? Is your internal mask a genuine 6X8 or has it been modified to 6X8 or maybe just 6X7. Just wondering. Link to comment Share on other sites More sharing options...
tom_kondrat Posted June 11, 2021 Author Share Posted June 11, 2021 The problem is in scanning. Light of the scanner lamp bleeds around the negative, and the software turns it into this orangy colour. So mask properly when scanning. Yes, I think you are correct as the negatives look fine. I use Epson V700 with standard film holders. Do you know a way to 'mask properly'? Link to comment Share on other sites More sharing options...
ajkocu Posted June 12, 2021 Share Posted June 12, 2021 I'm curious to find out the answer. I also use an Epson V700 with its film holders and have not encountered that issue. Link to comment Share on other sites More sharing options...
q.g._de_bakker Posted June 12, 2021 Share Posted June 12, 2021 You have to make sure no light bleeds through the rebate around the actual negative. If the supplied masks do not do the job, adding some stiff black paper might help Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted June 12, 2021 Share Posted June 12, 2021 From negative film presumably? Otherwise the edges would be lighter. You can get a similar effect if the edges of a filmholder/negative-carrier are reflective or glossy and not chamfered. Any decent carrier should have a 45 degree chamfered edge facing the light-source, and be matt black finished. Otherwise there's a tendency for light to reflect off the underside edges of the carrier and create those darkened edges with negative film/lightened edges with reversal film. Maybe a simple additional black paper mask would sort it? Link to comment Share on other sites More sharing options...
laurencecochrane Posted June 12, 2021 Share Posted June 12, 2021 Lay the negative flat on the glass see what that does. I never use the holders. 1 Link to comment Share on other sites More sharing options...
peter_fowler Posted June 12, 2021 Share Posted June 12, 2021 I've done that on my Epson V 600 for years now , takes a few extra moments to align and you're off to scanning heaven . Possibly a bit exaggerated , but not by much ! Transparencies offer their own challenges (Newtonian something or anothers') . I could try and get some anti-newtonain ring glass , but ( I'm Scottish by descent :) ). Peter 1 Link to comment Share on other sites More sharing options...
laurencecochrane Posted June 13, 2021 Share Posted June 13, 2021 (edited) I've done that on my Epson V 600 for years now , takes a few extra moments to align and you're off to scanning heaven . My V600 I ran a strip of self adheasive foam strip, I use to make camera light seals down the scanner glass I just slide the negatives edge up against it. The flatbed of the scanner I do not need. Flatbed scanner on my printer. The V600 now negatives only.but not permanent. Edited June 13, 2021 by laurencecochrane Link to comment Share on other sites More sharing options...
q.g._de_bakker Posted June 13, 2021 Share Posted June 13, 2021 Sliding a negative against a foam strip does not cover/mask the rebate of the negative. So while it may work keeping the negative in place, it will not solve the OP's problem. Link to comment Share on other sites More sharing options...
peter_fowler Posted June 14, 2021 Share Posted June 14, 2021 Not too sure if you're familiar with the V600 , but after it does the initial scan you simply use the mouse and size the amount of negative you want the final scan to be , hence eliminating the darker section . Peter Link to comment Share on other sites More sharing options...
kmac Posted June 14, 2021 Share Posted June 14, 2021 Not too sure if you're familiar with the V600 , but after it does the initial scan you simply use the mouse and size the amount of negative you want the final scan to be , hence eliminating the darker section . Peter Yes, similar to this crop line, but the sides still need to come in further to eliminate the dark edges entirely, which means the size would be reducing to nearly 6x6. Perhaps fixing the original scanning problem first would leave more scope for cropping for compositional taste, rather than the starting point for every negative being close to 6x6 instead of 6x7. Link to comment Share on other sites More sharing options...
tom_chow Posted June 14, 2021 Share Posted June 14, 2021 Masking or Laurence's foam should do the trick. The effect is due to light entering the edges of the film strip, which act as a light pipe due to internal reflection, allowing the light to bounce and travel a ways into the film before exiting and giving you that boarder. Blocking the light from the edge of the film will minimize this. The rebate plays a much smaller role, but can also produce this effect on dense negatives. A simple experiment with the Epson flatbed scanner is to load the negative in the standard holder, and keep the end exposed (ie: don't mask the ends). Scan to the edge of the film, you will see this light pipe effect most times. (PS: the mask needs to be on the side of the light source) "Manfred, there is a design problem with that camera...every time you drop it that pin breaks" Link to comment Share on other sites More sharing options...
laurencecochrane Posted June 14, 2021 Share Posted June 14, 2021 Sliding a negative against a foam strip does not cover/mask the rebate of the negative. So while it may work keeping the negative in place, it will not solve the OP's problem. No but it means I can include or ignore film borders. And I have no edge issues. Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted June 15, 2021 Share Posted June 15, 2021 (edited) The effect is due to light entering the edges of the film strip, which act as a light pipe due to internal reflection.. It's a pretty poor mask/filmholder that allows light to hit the edge of the film side-on! But if that's the case, then running a permanent marker pen down the edge of the film might fix the issue. Edited June 15, 2021 by rodeo_joe|1 1 Link to comment Share on other sites More sharing options...
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