Inexpensive episcopic MTF target?
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- blekenbleu
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Re: Inexpensive episcopic MTF target?
Trying the opposite, namely matte black sprayed blade against nearly white nearly opaque polymer sheet:
... then the lighter half of line profile suggests about 4 pixel radius:
Metaphot, Optiphot 1, 66; AO 10, 120, and EPIStar 2571
https://blekenbleu.github.io/microscope
https://blekenbleu.github.io/microscope