Are there certain papers and processes that can be used to increase the visible grain on a print? I have some negs that are not grainy at all, but I want them to be.
Overexposure followed by very slow development in a highly diluted developer is one idea I had. It works with lith printing, but I don't want any color changes, and I want to be able to easily make near-identical copies. When I want to enhance the grain on a piece of film, this is one thing I do. However, I am not sure if the effects will be noticeable on paper, on which the grain is not enlarged as it is with film.
Are there any papers out there that are particularly coarsely grained? I am assuming, like with film, that the faster a paper is, the more potential it will have for me.
Howzabout a modified developer formula; for instance, D-72 without any sulfite?