Let's assume that I have an exposed frame with the contrast range not fully covered (and let's assume that I just want the scan). I have two options:
- develop it normally, scan and then work on this freely on computer,
- adjust developement to N+1 or N+2 and then scan.
How different will be the outcomes of these operations? Especially, which option gives lower noise ratio? My thinking is as follows: I suppose that both options will magnify negative's grain. But does film developement just magnify transparency of the particular crystal or there is some more subtle reaction that maybe somehow "smooth" the noise? And maybe the development process works on some intermediate level of the transparency, which scan cannot resolve?