Crystal, I am able to achieve better sharpness with all my Canon and Sigma lenses if I turn off auto focus and just manual focus. I truly believe the AF on my 40D stands for "approximate focus" Give it a try. Take two photos, using a tripod. Auto focus one then switch to manual focus for the second photo. Then compare the two on your computer monitor. I bet the manual focus shot is sharpest. Hope this helps - jimmy ...
Almost forgot, shoot at F8 or so and a fast shutter speed.


LinkBack URL
About LinkBacks






Reply With Quote


Bookmarks