Thanks Mr. Terry! I'm sure loving the K-5. I just ordered the 40 f2.8 XS to make the camera really small. I picked it up on Pentaxforums for $145 shipped. Going through photos from the K-5II and IIs that I have, I think Pentax put a really weak AA filter on the II. I cant really tell a difference when just looking at them on my PC. Have you had any experience with the Tamron 70-200? I know you use the Sigma.