I would submit that in the case of lens resolution practical tests and
experience can't substitute for precision of measurement against a
suitable test target or without a comparison image with both examined at
high power.
On the other hand, having a very pretty and pleasing image does not
depend on resolution.
Chuck Norcutt
On 1/22/2013 6:28 PM, Moose wrote:
> I believe Chuck's calculations are correct, but not always in agreement with
> experience.:-)
>
> His calculations of diffraction limits on resolution have not agreed with my
> practical tests and experience.
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