Lately my Canon 20D has been having problem when looking throw my viewfinder. When looking through the viewfinder it looks very blurry even though in actuality it's really focused(auto focus). When you snap the picture it comes out clear with good details. When I first noticed it I thought it was the lens but than I try on my other lens it was still blurry looking. I also thought it might be my eyes(going bad) but today while trying out a friends Canon Rebel the focus was crystal clear when looking through the viewfinder. Any ideas on solving this or should I start looking for a new camera body? Thanks in advance.