Josh,

One lens that you can look at is 90mm Schneider Angulon. It is very small comparing to newer designs of wide-angle lenses, cover entire 4x5 without movements and sharp when closed down. Plenty of information about it on th net. One problem - I feel that these lenses are usualy over-priced. I once saw one from a linhof sell for 550$ w/o lensboard. I got mine from Midwest photo www.mpex.com, payed very reasonable price.

Hope it helps,

Hagai Kaufman Albatross Aerial Photography www.albatross.co.il Tel Aviv ISRAEL