Originally posted by Jonathan Mac Very nice shots, excellent digitisation. I remember that arch from my visit to Vienna a few years back - it provides very good light for photography.
Thank you!
---------- Post added 02-10-18 at 06:39 PM ----------
Originally posted by cooltouch Fascinating. Especially your explanation regarding your duplication setup. Makes me want to start saving up for a similar outfit. I've been happy with my 24.3mp NEX 7 and 55mm f/2.8 Micro Nikkor AIs, because I'm able to resolve even Kodachrome grain. But yours would suggest that there's even something more and better to be had.
I've known for years about just how sharp Pentax lenses can be so it doesn't surprise me at all you were using Pentax primes for those shots.
Thanks again. I do hope that some day soon I get around to posting a detailed explanation of my duplicating process in the Film Processing, Scanning, and Darkroom subforum. If you are able to resolve Kodachrome grain and there is no pronounced falloff towards the corners I think you are doing fine (but something better is always to be had). I would have loved to test the old Apo-Rodagon D 75mm f/4 1:1 lens that was designed for slide duping but I could not get my hands on one here in Austria.
Just a few more hints: for B&W negs I am using just the green channel in order to get rid of the (comparatively small) lateral CA of the DFA 50mm Macro. At f/9 I'm already getting some diffraction but not too much and I have less issues with film flatness (I'm using an old film holder from a Durst enlarger, one side with anti-Newton glass, one side glassless). For colour work I found that the illumination does make a difference: with a Kaiser Slimlite Plano LED light box I'm getting better colours than with the Gepe light box with fluorescent tubes I used before.
Last edited by wkraus; 02-10-2018 at 10:50 AM.