How are you attaching a filter holder (Lee for example) on Cambo lenses with bull handles? I have tried a series of step-up rings to move the filter holder past the handles, but it does not seem to be sturdy enough for long term use (maybe rings were poor quality). I suppose I can remove the handles, but I prefer to have them for more secure handling of the lenses. Thanks in advance for any comments/suggestions.
John
John