Reply to thread

Message: <blockquote data-quote="cwgrizz" data-source="post: 540532" data-attributes="member: 27017">Usually for that "Sharp/Crisp focus, you need to shoot 1 1/2 to 2 times the focal length for you shutter speed, unless using a tripod.  Example: Lens set to 300mm, shutter speed should be set to a minimum of 1/500 - 1/640 Second.  The glass windows will have an effect also on sharpness, especially shooting at an angle through double pane glass. Your 600mm (I don't have one, so take this with a grain of salt) might make it so you can shoot outside and stay away from the feeder far enough so you won't bother the birds and get some good shots without added, unwanted filters (windows).  The drawback to the 600mm is that shutter speed would have to be set to faster speed which of course would mean large aperture and/or high ISO setting.  It is just the way it is.  :encouragement:</blockquote>