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06-07-2019, 05:37 PM   #16
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I'm curious whether the software I use could invert a photo of a negative. What lens did you use? I was thinking that the 100mm macro or 35mm macro might work.

06-11-2019, 11:41 PM   #17
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I use 100 mm macro

Before I used an old M-100mm F4 macro with an extension tube. Works fine with very nice results, manual focussing full open, stop it down to F8-F11 for the best results. Now I own the DFA 100 mm F2.8 macro with manual focussing. Because it is one stop wider the manual focussing goes more precise. Both lenses are more than sufficient for sharpness, they both out resolve your film.

I think 100 mm is to prefer over 35 mm from point of view for the more lineair perspective and shallow DOF. On the front top of the LED light bulb there is a little manufacturing rub that I removed with fine sand paper to achieve as equal possible light source. I kept some cm's distance between the bulb and the film so the uneveness of the bulb disapears in the shallow DOF. With a shorter focus length this might be more difficult to do.

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