That’s true for most b/w negatives, but not all. E.g., Ilford XP2 negatives are based on dye and do not have this issue. However, Kentmere 400 seems to be a “regular” b/w film.
- Yes, I do need to replace my X240 by a new laptop, and
- it depends.
Processing power is one thing, and storage another. Depending on how many of these files you have to handle, the additional 100 MB compared to my 18 MP files will easily require additional hard disks. I have about 1500 negatives and 500 slides, which would make a difference of 200 GB. That’s something one might easily handle, but even then, if there is no benefit of higher resolution it might make sense to not use additional space. My father in law has probably 50000 slides (a rough guess, but it’s a huge cabinet full of magazines) …
As all of my pictures are color, I need to store each image twice, as I need the scratch-removed negative to be fed into darktable. This makes things even more cumbersome. However, I hope that one day I will be able to do even the scratch removal in darktable. For now I am using all sorts of workarounds to deal with the huge amount of data in a sensible way.