I developed some ASA 400 BW film last night. Is the characteristics of the 400 tend be a little grainy? I would of figured being larger format, it would been a finer. Still happy with the results, just curious.
As a very general rule of thumb, the more sensitive the film (higher ISO) the more apparent the grain. This is a characteristic of the emulsion, not a characteristic of the format.
There are many other things such as exposure, type of developer, etc. which will effect the final grain size.