StanMac wrote:
While quick and easy, the bayonet type hood mounts I’ve had experience with will eventually wear to the point they lose their integrity. Once the mount has worn to the point it can be knocked loose of the detent, there’s no way of restoring the original integrity short of replacing the hood and hood mounting flange on the lens. I’ve just resorted to using screw mount hoods on the lenses that have that issue.
Stan
When this happens to my lens hoods I place a drop of Super Glue on the lens hood (with it off the lens) where the prongs stick out and it restores the friction and stays on the lens.