I checked my 55 f1.2 more carefully, and with a little imagination
thrown in I think I see a slight falloff of the yellowing at the
edges. It is not a gradual, but a more of a sudden change near the
edge. BTW, a skylight filter reduces the visibility of the
yellowing.
--- whunter <whunterjr@xxxxxxxx> wrote:
From the posted picture I do not perceive a fall off in intensity
from the center to the periphery to the extent expected, but
expectations are empirical given the absence of thickness
measurements.
=====
Don Shedrick
http://groups.msn.com/firstlightimaging
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