Replacing or repairing the shutter release button – 550d


The sick camera was a 550d. No second contact on the button (practically, You had to push it very hard).

After disassembling, I have found out that this is a new type of button (new for me), one side a little bit larger than the other. I decided to disassemble it, to see at first, what the problem is.

DPP_0003  DPP_0001

The contact plate is in fact formed of two similar plates – and the lower one, which is responsible for the contact has a darker colour – some oxide or what on the surface. They had NO BREAKAGE, NO sign of mechanical wear, so I reversed them. Fortunatelly the cap is a remountable one. After assembling the camera, everything was OK again.

As a conclusion, I advice You, that case the button is OK, but only is perfect, don’t desolder it and build in a new one, just clean it from oxides, as the flexible cable is not for many resolderings. In this cases the button can really be repaired.

About canonrepair

Ruzsa János. Amatőr fotós, Canon DSLR váz. Amateur photographer. Canon DSLR user.
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