>>3865562MILCs are fine. Small low res bayer sensors aren't though.
#1 12MP Sony A7S III will suck completely.
#2 20MP Canon EOS R6 will be a gigantic leap over the ARS III but still shit.
#3 61MP Sony A7R IV is mid range, for the task at hand. Not ideal just decent.
#4 102MP Fuji GFX 100S will actually be good and for 35mm this is reaching the point of diminishing returns.
>Why exactly is the Fuji GFX 100S good for 35mm?The sensor resolution is 11,648 x 8736. This is perfect for this task. When you cut resolution down to account for losses from incomplete samples and interpolation due to the bayer filter to get acceptable pixel-per-pixel detail, and not a blurry meme, you wind up dividing your resolution by 2 in each direction. This gets you 4:4:4 info per pixel instead of sub sampled shit. This is normally quite devastating for most cameras. For scanning 35mm, the resolution of this camera lines up almost perfectly for the task.
So here's the original resolution divided in the way described above.
11648 / 2 = 5824
8736 / 2 = 4368
4000 DPI is an agreed upon good quality target for 35mm scanning, so let's divide the new resolution we got by just that.
5824 divided by 4000 = 1.456
4368 divided by 4000 = 1.092
Look at those numbers. The frame size of 35mm is ~1.42 x ~0.95 inches. You can easily get 4000 DPI scans this way with some room to spare.
To simplify everything just do the following.
Take the sensor's longest resolution (usually width) and divide that by 2.84 for effective scan DPI for 35mm.
For example take a 24MP 6000x4000 sensor.
6000 / 2.84 = 2112, round down to 2000 DPI to allow for positioning/framing. Obviously if you zoom in for stitching you can exceed this but we're measuring by single captures here, to keep things simple.
Mirrorless camera scanning is absolutely not just a meme. Low res+bayer is.
#1 12MP = ~1500 DPI
#2 20MP = ~2000 DPI
#3 61MP = ~3300 DPI
#4 102MP = ~4100 DPI
$200 Flatbeds get ~1600 DPI.
$400 PlusTeks get ~3300 DPI.
