An interesting thread, to be sure.
1. Those of you that are stitching - how are you combining the shots on the computer, Photoshop? Do you ever look back at the seams and see imperfections?
2. FWIW, back in December I got an nikon ES-1 slide copying adapter and rigged it up with a film era 55mm micro nikkor and the proper extension tubes/adapters to my A7r3 to shoot a few old 35mm slides. (never messed with pixel shifting) Realizing that my film flatness is likely not as good as with many of the setups described here, what I found after inspecting the results were that even stopped down to F8 the corners of my images fell apart at the grain structure level in a very similar way that 35mm print enlargements often do...(all 4 corners, evenly, and significantly)
As someone used to the quality of 4000 dpi drum scans from 35mm, Sandy's final comment on post 109 seems to echo my results....I think film flatness and straightforwardness/simplicity of process may still give high end film scanners an advantage for those seeking the ultimate quality...
3. sperdynamite or someone else who has used it – Can you elaborate at all on this MK-1 film holder? I just looked at the site, but can't get a clear sense of how it functions....does it show the clear edge of the negative around 35mm ie true full frame?? (I see now it does - but how does the grain structure in your corners look?) seems like maybe not to make sense to me to fiddle with pixel shift and stitching if all 4 corners of your frame, (regardless of format) are a little weak?
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