I did a lot more experimenting with my 70-300/F4-5.6 ED lens. If I take a shot that is a great distance, the subject doesn't look as good as a closer one. I am curious if this is camera shake (I used shutter speeds up to 1250) or if the lens just poops out after 40-50 feet or so. Thanks. Edit: I am using a monopod for these shots.