Testing a Super Telephoto

Just recall that when you see other peoples feather detail they may have applied more sharpening than you have - even another development software. I do assume that you are shooting RAW of cause.

Another thing - for optimal sharpness if you have the lens on a tripod add an additional monopod mounted on the camera to cut vibrations - and then turn of IS.

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Kjeld Olesen
http://www.acapixus.dk