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Need some clarification re open aperture and 200-300mm
Need some clarification re open aperture and 200-300mm So I basically understand depth of field, and my impression is that some image sharpness starts to be lost at 200-300mm focal length. I'm not quite clear about all the reasons for this, but I'm just reading now, for example, that at 200-300mm, slight movements become very noticeable and this may be counteracted with fast shutter speed. So, I di...
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