04-21-2021, 11:11 AM
Well... MTFs show the (theoretical) performance in the focus plane. In that sample image, none of the corners is in focus. So, not a valid conclusion (from that image).
Not to say that manufacturer MTFs sometimes collide with actual performance in the field, though... far from it
Not to say that manufacturer MTFs sometimes collide with actual performance in the field, though... far from it
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