Question about Canon EOS 450D Digital Camera

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Auto Focus Not Working

Hi, I have my Canon EOS 450D Camera for about 9 months now and I greatly enjoy using it but as of now I encountered a problem regarding the AFfunction, it does not respond Auto Focus especially when I'm at AV mode, so basically the pictures are all blurred so I'm switching to MF that makes it hard for me to use.. Whats the problem regarding my Camera?
Thanks in advance ^_^


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I had a same problem, Auto Focus works in all the Basic modes but it did not work in Advanced and Manual modes.  After couple of hours of frustration I found the solution. It worked for me, I hope it will work for you too.
Follow step by step instructions. Start the Camera
Go to M (Manual Mode) Press Menu Button Go to 6-th Tab Custom Functions (C.Fn) Select Clear settings Select Clear all Custom Func. (C.Fn)
This should fix your problem
Go back to shooting more and try your Auto Focus

Posted on May 07, 2009

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There are several possibilities. Start with these first 2 steps:

1) If you have more than one lens, try a different lens. If the problem persists with different lenses, then the problem is in the camera. If the problem goes away with a different lens, then the problem is in the lens.

2) Clean the contacts between the lens and camera. Gently rub the contacts with a clean pencil eraser, and hold the item with the contacts facing down so that the eraser debris falls onto the table, not into the lens or camera.

If this doesn't fix the problem then it is internal - either in the lens or camera. Refer to step 1 to test to see which it is. Then you need to send the appropriate item into Canon for cleaning and repair. Canon may request that you send both the camera and lens, so call them before you send the item in for repair.

Posted on Jan 06, 2009


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My Canon EOS 450D shows busy while trying to click on AF auto mode and it does not click at all.

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Rob NL

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