RbrtPtikLeoSeny wrote:
Yea, it's as tight as I can possibly make it, and I purchased it second hand from a fellow member of this forum. It's fine so long as I don't hold it by JUST the grip in the vertical position. I think it's the weight of the flash and camera pulling away from the grip that causes it to separate just enough for the power to temporarily shut off.
Maybe I should put a dab of super glue on the little spike that pushes down that button where the battery flap usually is. Just a little ball, that'll keep it pushed down better or something. Hmmmm....
This was a huge problem for many users. Supposedly Canon fixed the problem on newer versions of the grip, but that doesn't help you now...
See if there is a rubber spacer at the base of the part that goes into the camera. This seems to be an area that would loosen the grip. If you are lacking this spacer, you can always make one.
In addition, try inserting the grip all the way into the camera PRIOR to tightening the wheel. This may secure the unit better than using the wheel as primary source to insert the grip.
BTW, I have 2 x 20D's w/grip (wife and I) and although I have experienced this problem, I've experienced it rarely. I found on large lenses, it was better to support the camera (w/lens) primarily by holding the lens vs the grip.