hanna_cowpe Posted December 14, 2004 Share Posted December 14, 2004 Has anyone out there experienced autofocus failure on a 300D? It works fine in manual focus but not in auto in any mode. I've tried different lenses with no change. Any troubleshooting tips? Link to comment Share on other sites More sharing options...
tom_swanson Posted December 15, 2004 Share Posted December 15, 2004 No. Start by telling us what it is (or isn't) doing? Link to comment Share on other sites More sharing options...
hanna_cowpe Posted December 15, 2004 Author Share Posted December 15, 2004 It won't focus in autofocus mode so I can only shoot using manual focus. Link to comment Share on other sites More sharing options...
marcin harla Posted December 15, 2004 Share Posted December 15, 2004 If it doesn't focus at all in AF mode send it back to Canon Link to comment Share on other sites More sharing options...
stefanovandelli Posted December 15, 2004 Share Posted December 15, 2004 Hanna, on the 10D there is a custom function that allows the move of the AF function from the shutter button to a button at the back. If you have a hacked firmware, have you been playing with the Custom Functions values? Before sending it for repairs I would reload the original firmware and see if that fixes the problem. Good luck. Link to comment Share on other sites More sharing options...
stefanovandelli Posted December 15, 2004 Share Posted December 15, 2004 I just checked the 10D manual. C.Fn-04 set to 1 causes AF and AE lock to operate separately. The <*> button operates the AF while the shutter button operates the AE lock. I think this operates the same on a 300D with the Wasia Firmware. Ensure C.Fn-04 is set to 0. Good luck. Link to comment Share on other sites More sharing options...
hanna_cowpe Posted December 15, 2004 Author Share Posted December 15, 2004 Thanks guys. I've just taken it to the local Canon rep and they have told me the mirror pin has broken. I have no idea how this could have happened as the camera has never been dropped or damaged since I bought it. They will send it to the Canon service center who, according to the rep, will decide if it's covered by the warranty (!) Looks like at least 4 weeks without my camera - just great )~; Link to comment Share on other sites More sharing options...
phil vaughan - yorkshire u Posted December 15, 2004 Share Posted December 15, 2004 I'm fairly sure that CF4 isn't included in the hacked firmware, if the camera won't focus, it's broken. However first check that it's not in sports mode - where there'll be no focus confirmation as the camera is in AI Servo mode. Also check that one of the off centre sensors isn't selected solely, as if the single sensor isn't given a subject to focus on, it will fail to focus. This is difficult as Hanna hasn't really given much info as to what's been tried already, and exactly how the camera is failing. Link to comment Share on other sites More sharing options...
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