I have been using my 200-500 lens since 2016. Lately I have noticed that regardless how much I tighten the ring knob the camera still tends to drift off center as I shoot using a monopod.
Does anyone else have this same issue and if so how have you fixed the problem.
It seems to me that there should be some type of gasket immediately beneath the ring in order to make the ring tighten a bit more around the lens.