
Canon EOS trouble diagnostic, All of your shots look like this (note: in some flash/sync combinations a similar phenomena can occur): This is due to the sub-mirror blocking the CCD, causing a dark area on the photos. Removing the lens and lifting the mirror carefully by hand, one can note that the sub-mirror wont close into the main mirror. The sub-mirror is used by the auto focus and should fold into the main mirror when it lifts out of the way. How to repair broken sub-mirror on Canon EOS 300D / Rebel, After doing that you can use the camera but the auto focus wont work (setting the focus manually works fine and the camera works just like normal in manual mode). Fixing the problem The camera can by fixed. It’s not an easy operation and requires some skills with small screws, patience, even more patience and some good luck. But what do you have to loose, the cameras busted anyway (unless you feel you can live without auto focus, in that case, just glue the mirrors together and live with it). Let’s begin with the disassembly. Now look inside the battery compartment. Towards the front there are two screws (identical). These little buggers took me some time to locate. With a long thin phillips screwdriver inserted from the back you can unscrew these. My screwdriver was a little to thick but some mild bending got it where it needed to be.

Tags:canon eos 300d, little buggers, mirror repair, small screws, canon eos
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