On Thu, 13 Nov 2003, Mark Roberts wrote: > No. You'd have to compare a 450/2.8 FULL IMAGE CIRCLE lens on a film > camera to a 300/2.8 limited image circle lens on a digital camera. Allright, but it doesn't matter. If 300/2.8 FULL IMAGE CIRCLE lens is two times smaller than 400/2.8 for film, then 300/2.8 limited image circle lens on a digital camera would be probably about three timnes smaller than 450/2.8 FULL IMAGE CIRCLE lens on a film camera. So we have come to conclusion that 16-45 is quite big compared to hypothetical 24-70/4 on 35mm camera, but longer lenses (equivalents) would be much smaller. But it is normal, you have to bear in mind, that 16-54 has to have similar optical construction to 16-54 for full frame coverage, it just has to throw smaller image circle. And 16-54 f4 full image circle lens would be much bigger than DA 16-45.
-- Regards Sylwek