>>3891909>Not even recent, tbfYeah, I just said "recent" because he asked about modern film cameras in the post I was replying to.
Obviously less-modern cameras let you change the ISO because they were made before all film had DX coding on the cartridge (e.g., the F301 you mentioned was literally the first Nikon SLR with DX coding support, so there was still a lot of film being sold or just sitting around in people's fridges that didn't have it, so manually setting ISO was a must).
There are a few out there that don't have the option, though. E.g., the EOS 850, which is a really weird little camera that's basically a point & shoot SLR. It has literally zero manual controls besides whether or not you want to take a picture (and manual focus, but only because Canon's manual focus control is on the lens). No way to change the ISO besides swapping in film with a different DX code.
(Also: I totally just remembered that I own an EOS 850 and now I want to run a roll of film through it and see what it's like to actually use)