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Title: Thought I Made a Mistake
Review: After reading the mixed reviews, I decided to purchase this lens. I needed the lens for a few upcoming events, so it went to work right away. After the events, I viewed the images on a computer and was very disappointed. Close images (under 10 feet) were sharp, while images between 10 feet and infinity were almost out of focus. I would get the focus confirmation in the viewfinder, so everything appeared to be fine.After some test shooting, I realized that if I manually focused the lens, the pictures were tack sharp. Luckily, the Live View with the 40D really helped pinpoint this issue as you could enlarge the view and see the focus error. I contacted Canon and they sent me a mailing label so the unit could be calibrated. After 7 days, I have the lens back and it is right on the money now.I am now very happy with this lens and thumbs up to Canon for great service.
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