(I posted this in another thread, and decided that maybe it should be flown for all to see) I have found an easy way to unscrew filters off the camera lens. Using the prop-tightening spanner, I 'wrap' the circular part of the spanner around the filter then gently but firmly give it a slight turn until it loosens. DO NOT, twist the spanner by the handles because they will break. Gently wrap your hand around the circular part of the spanner and carefully twist the filter loose. Remove the spanner and loosen the filter the rest of the way by hand. The circular grip give it an even seize all around the filter. The same principal is used by engine oil filter removal tools on vehicles. It worked well for me. Pete.