I bought a Speed Grip S and it makes my SQ-A *much* easier to use. However, the lock feature on the shutter release...doesn't. It "locks", but there's enough travel in the release mechanism before it hits the lock to release the shutter. This is a problem, because I tend to handle the camera by the Speed Grip in between shots, and I'd like to avoid taking any unintended shots while keeping the camera cocked.
So, as any good engineer would, I took it apart. The stepped panel under the hand grip removes easily with six screws, revealing the locking mechanism. It's a strip of metal which blocks the travel of a lever which actuates the lever that pushes against the shutter release button on the body. There's about 0.1" of slop between the locking bar and the activating lever. Others have mentioned that there's some kind of adjustment possible if the access panel which mates against the camera body is removed, but I couldn't figure it out. What I intend to do is to add a shim to the activation lever where it contacts the locking mechanism. This should decrease the slop and prevent the shutter from activating when the lock is engaged.
If anyone knows the correct way to fix this, please let me know. My modification is fully reversible, so if I find the right way to fix this problem, I can take it out...
And the shim is in...works perfectly!
Last edited by Peter Simpson; 11-07-2012 at 04:50 PM. Click to view previous post history.