yea, thats what happens with most "standard" fisheyes on a 1.6/1,5 crop body. the standard lenses i can think of are: the peleng 8mm? the sigma 15mm? the canon 15mm and the other russian one, i think its a 8 or 16mm. the only "fisheye" for crop cameras that i know of is the tokina 10-17 atx pro...