These lenses offer fantastic resolution compared to "non digital" lenses. Up to 200 lines per millimeter. Comparisons in Photo Techniques show they really blow away medium format lenses using the same digital back. Not sure how many films would really take advantage of these lenses; Acros, TMax 100, Ektar 100 and Velvia, perhaps. Still a lot cheaper to shoot 8x10 color with a "normal" large format lens. The 65 megapixel backs, with a sensor size of under 6x4.5, cost over $40,000.