Hi--

> In web-net, you mentioned Nikor 28mm
>PC lens as one of the sharpest - another source has also labeled the PC
>model as
>the absolute best in resolution - Is this
>correct ? Is it because of the construction as a P C and lack of budget
>boundaries ?
>It seems interesting that a rare and seldom used lens model turns out to
>be the best choice after all.
>I assume this lens will work on the AF
>bodies as well, although I would NOT be using it as PC , simply as a
>wide-angle.
>Thanks,
>W.G.D.III WHAT-3-d@webtv.net

It may have more to do with the extra coverage of the PC lens. Normally,
it is considered good < 35mm performance to have excellent center sharpness
wide open, with very good edges and decent corners around f5.6, and excellent
overall performance around f11. If the PC lens is designed to this same
standard, the center part that is used with the lens unshifted tends to
be better at the edges at wider stops. Against this is the preset diaphragm,
potential problems from the greater coverage being reflected around inside
the body (you can use a longish shade that cuts most of this off, if not
shifted), and higher cost and greater weight of the PC. BTW, among the Nikkor
28's, I generally prefer the 28mm f4 PC (if shifted) to the newer f3.5, the
28mm f2.8 AIS to any other 28mm f2.8, and the 28mm f3.5 AI/AIS - with the PC
winning in the corners (centers of all are about equal by around f5.6). The
PC's work well on AF bodies (no AF, "D", "S" and "P" modes, Matrix metering,
etc... [no loss...;-]) that take manual-focus lenses.