Question about Canon Cameras

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I have a Canon 20D camera that I use with two lenses. The lens that I have most of my problems with is the 28-70 f2.8 red ring lens. When focusing It always seems to focus on what is behind the subject. No matter how much I concentrate on the focusing sensor to focus on the subject -AND it looks like it focuses on the subject-UNITL I load my photos and look at them in disgust that it focused behind it!! What is going on?? I use the same lens on my friend's cannon 5D and NEVER have this problem. I need help! What am I doing wrong? Is this a common problem?

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This is quite a well known problem called 'back focusing' there is little that can really be done about it, except if the camera is under warrnty you can send it in and they will do some laser alignment that fixes the problem, it would be worth a call to canon and getting a price quote on a service. Also it seems to be worse with some particuar lenses,

Cheers

Emmanuel

Posted on Sep 12, 2008

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read this!! :)

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