Swampfox
New member
For those considering the RolanPro cover for their Nikon 600mm f6.3 PF lens, it is an excellent product with one major design drawback. Section 4, which covers the manual focus ring, also extends onto a short segment of the lens barren between the control ring and manual focus ring. Prior to installing the RolanPro cover, the manual focus ring turned silky smooth. After installing the RolanPro cover, it became extremely difficult to rotate. So, the current options are to simply not install Section 4 or, do as I did, and carefully cut Section 4 into 4 pieces, one tailored for the focus ring and the other for the narrow segment of lens barrel. In doing so, silky smooth focusing with the manual focus ring returned.