Manfrotto Video MVA50A Fluid Base w Retractable Feet type lenses slr lenses There's also a built in electronic There's also a built in electronic compass that can accurately detect the cardinal direction in which the photographer is facing even if the EOS 1D X is held vertically The Leica Rear Lens Cap for M Mount Lenses is a plastic cap that protects the rear element of an M Mount lens when it's not on the camera Fluid base that quickly transforms a photo monopod into a video monopod adding the fluidity feature onto the PAN movement MVA50A can be easily attached on the last section of a photo monopod and is suitable for: