I took these from the (wonderful!) Malheur Field Station just south of Burns, OR. It is a nice dark spot in southeast Oregon, latitude 43 15', longitude 118 55'. They were taken on 1997-03-28 at about 21:00 PST (GMT - 8 hours). The comet was pretty close to Dec 45 20, RA 1h 21m.
I used Kodak RF 1000 film.
I solicit advice on converting Kodak PhotoCD images to good jpg's for the web, and in particular, how to pick the right colormap for cross-platform viewing on machines with only 256 colors.