400D Autofocus problem

sepulchre

sepulchre

sepulchre

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Joined
30 Sep 2003
Posts
2,098
Location
Not so Sunny Dundee
My 400D out of the blue is refusing to lock focus, instead it (and its the only way I can describe it) judders! I currently have the battery on charge and the backup battery removed form the camera in an attempt to reset it.

Any ideas what it could be?

Thanks in advance
 
aye thats the first thing I checked. I've tried the 3 lens's I have and switched each of them between AF and MF, its as though its trying to focus but cant lock so moves back and forth across the focus point.
 
OK, I feel so dumb!!!

I think through some random button pressings in my camera bag the AF had been set to AI Servo, which (until now) I've never used. So many thanks to Nazbit and Raymond Lin for the suggestions and solution. I'm so relieved its not a problem with my camera :cool:
 
It was indeed focusing constantley, I guess though if nothing else I've learnt another function of the camera which does ease my feeling of stupidity a litlte, cheers again :D
 
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