I have seen many filters for getting the color to resemble specific film stocks. I have not seen any for grain but I bet they exist. It’s also probably true that “grain” is stock specific and that you need quite a big file to make the grain feel “natural”. What’s your context?

You guys are talking about Exposure and Exposure 2 from Alien Skin Software . . . http://www.alienskin.com

Stuart

“Grain” in Photoshop works pretty good.
The trick is to fool around with that and blurring, at a particular image resolution, and fine tune it in relation to the final output resolution/rendering.

Power Retouche filters have both Grain Filter and a good Black/White Studio
http://powerretouche.com/

It’s reasonablely priced. (over onOne which is shockingly expensive and shite).

When you open it you can select some effects that look like types of film. And you can add B&W filters such as Orange.

It has settings to mimic Kodak TriX400, TMax100, Ilford HP5, Delta100, PanF, Orthochromatic and Panchromatic.

http://powerretouche.com/Black-white_plugin_introduction.htm

Power Retouche - Grain Filter

p.s. my camera, lens, film examples are here. These are some various types of film. Polaroid Instant 35mm Color Slide Film, digital photos from the first dig camera Kodak DC-50, phones, Mamiya RZ67 Pro II, Nikon FM-2, D2H, D2X, D300, etc.

http://www.flickr.com/photos/93279914@N00/sets/72157600789321888/

Exposure 2 is the best you will find today, way better than everything else mentioned above; I worked several years with traditional cameras such as minolta and leica m, and now i am working with a digital leica; once coupled with exposure settings, the result is extremely close to the ol’system.

this being said... isn’t this a typography forum?

dr