Originally Posted by
joe
Billy, apparent graininess is normally caused by using a high ISO setting on your camera. You have to play iso, shutter speed and F number off to get the results you want. For wildlife shots usually a fast shutter speed is needed to freeze the action and counteract camera shake, to get fast shutter speeds you will require a large aperture (which gives shallow depth of field), stopping down the aperture( to increase depth of field) reduces shutter speed so we have to increase ISO which gives the graininess.
Your pic of the tufted duck is better than the results I got when I tried a digiscope.
Joe
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