Don t waste your money.
Canon 40d shutter button repair.
Originally posted ages ago.
Fix it by your self.
Necessary tools for this replacement include a philips j000 screwdriver a plastic opening tool and a pair of precision tweezers.
My 40d shutter failed after 16 700 actuations.
Yer ive heard of the issue with the 40d shutter button before and it turned out to be dirt under or within the button compartment.
As i said i would do a search about it 20ds seem to have this problem.