Hi all

I seem to have a problem here which there is probably a simple work-around. I'm using a Nikon D300. Sigma 8mm F3.5, M Rotator TCP Short. 

The camera is attached to a Manfrotto quick release plate but it keeps sliding on this plate - ie no matter how tight the plate is on the camera, eventually it begins to slip a little. Does anyone have any ideas about how this could be eliminated as its not helping with my stitching...

Thanks