On Sep 5, 2005, at 2:03 PM, Graywolf wrote:
... So it seems there is quite abit of variation in M50/1.4 lenses
(none of these showed any sign of damage). ...
Doesn't seem surprising.
Optical bench lens testing brand new Nikkor 50mm, 105mm, etc lenses
20 some years ago showed a goodly variation, moreso with the larger
apertures. We'd get a dozen, test them, pick the three best, send the
rest back.
The optical performance varied by a significant amount wide open,
considering the purpose of recording science data. Not enough to
render them unusable for general pictorial photography, though.
Godfrey
