Originally posted by cbaumgaertner I can put any lens on the camera and auto focus it on a distant object. While i am looking through the camera i look at the split image to see if some line on a distant object is broken or straight. If it is broken than i have to ajust my lens manually or with the focus settings either +or-.
Just to make sure, though, you could do a series of shots, each with slightly different focus, to check whether your split screen really precisely indicates the focus adjustment that will give the sharpest image.
There is a slight chance that "sharp in viewfinder" is not exactly "sharp on sensor". This could be due to number of problems. Normally, you should be fine, though.