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Message: <blockquote data-quote="pistnbroke" data-source="post: 84208" data-attributes="member: 9514"><p>you need to adjust the back focus or fine focus adjust ..this will be remembered by the camera and specific to the lens fitted ( will not affect kit lens) ...put an expanding tape ruler pulled out about 4 ft in front of the camera at 45 deg to the lens axis ( I prop mine up on a couple of glasses on the table) and focus on the 24 in measurement . single centre spot....widest aperture longest focal length 10x focal length or more away. Examine on computer and zoom in ...if say 23 in is bang on focus you need to adjust to get 24 in spot on....This is the easy foolproof way to do it</p></blockquote><p></p>