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On Thu, 06 Nov 1997 07:44:37 -0600 brian whatcott said:[Dockstader]
I was surprised by the resolving power of the optics you mentioned.
In the modulation tranfer function plots I am familiar with ( for cameras)
the resolution limit seems to occur around 300 line(pairs) per mm
at perhaps 5% modulation, with a more representative value of 180 lpmm
for reasonable modulation depth.
Where did these MTF plots come from? What were they supposed to represent?
I've looked at a lot of lenses and I can tell you for a fact that any lens
that cuts off at 300 lines/mm isn't much of a lens.