Singh Ray Thin LB Warming Circular Polarizer (77mm) brand_Rollei The Canon EF 300mm f4L

The Canon EF 300mm f4L USM is a high quality telephoto lens with quick USM focusing and Canon's premium L glass and construction

the BL-3 chamber cover

The Manfrotto 128RC tripod head is a compact all-metal fluid head with a Manfrotto quick release plate

and the box this lens comes in says only "camera lens"

this will not interfere with a lens which is not keyed

Singh Ray Thin LB Warming Circular Polarizer (77mm) brand_Rollei The Canon EF 300mm f4LThe Singh Ray Thin LB Warming Circular Polarizer is a circular polarizer with a bit of a warming effect which is nice! This is the Thin LB version of this filter, which is thinner to stay out of the way of wide angle lenses, and also lighter and brighter to pass 0. 6 stops more light than other polarizers. In excellent condition, with pouch.