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Same body settings. APSC with the same adapter - no element.
Taken at the same physical distance.
Most youtube videos either move the camera physically to get "the same picture", but that literally changes your experiment because now you are physically at a different distance from your subject and you wouldn't get the same results. I take crop sensors as such. They crop. If I moved the camera back, you would wouldn't get a sharpness test that tests the range of the crop itself. Thoughts? I'd feel comparing sharpness when the cameras are at 2 different distances from the subject kind of defeats the experiment
(Speed booster example coming next)