On Fri, 2 Jul 2004, Thibs wrote: > These lens (DA ones) are really only usable on the IST-D right? > Or are these like some Sigma/Tamron, optimized for digital but you can still > use them for 24x36 ? > > I just hope Pentax will make Fas with the new focus mechanism of the DAs
DA lenses have a reduced image circle. The 16-45 appears to be usable from somewhere around 24 to 28mm on my ZX-5n. I haven't run film through it to see when the vingetting actually disappears. alex

