Help! I'm trying to work on shooting in Av mode but even once I have it in focus the photos are always blurry and a weird color. I'm sure whatever I'm doing wrong is such a basic mistake but I can't figure out what it is! I've tried with and without the flash, higher and lower aperatures. The lens I'm using is a 50mm 1.8f. Ugh, someone clue me in. Thanks!