Any details on format, lenses, what size field you want to cover, etc?
Here's a link page at Covington Innovations that's a good starting point.
http://www.covingtoninnovations.com/astro/links.html
Here's another page with techniques and equipment information:
http://www.astropix.com/HTML/I_ASTROP/TOC_AP.HTM
Most astrophotographers have gone digital because of the efficiency of CCDs in this application, so you may have to dig for any recent film info. This change started several years ago, so the recent films haven't been tested heavily for astrophotography, and the best films of several years ago have been reformulated to work more poorly for the red spectrum that's important in many nebulae. You want a medium to high speed film that's got little reciprocity failure, good sensitivity at 656 nm (deep red), and for color, layers that have fairly similar reciprocity failure.
At the bottom of this page
http://www.robertreeves.com/filmtest.htm there are links to tests of color and B&W films, many now out of date due to reformulations.
A drive is necessary if you want to go over a certain exposure time which is dependent on focal length and format. Search on "barn door drive", "scotch drive", or "trott drive" for several ways to make a DIY drive that you can use on a tripod.
Lee
