The dial on the adapter is a built-in variable ND filter which allows you to control the amount of light coming in from the lens with a quick twist of the dial
Lens Mount Arri Bayonet (Arri-B) Mount SLR Lens Body Mount C-Mount (1" Screw Mount) Cine & CCTV Cameras Product Dimensions 1
6" Holder Bracket for attaching 6
Fits virtually all smart phones cameras
Mounts Canon FD & FL 35mm SLR lenses to Fujifilm X-Series Mirrorless Camera Body
Fotodiox Pro Lens Hood for Rollei TLR Camera with Bay I (B1) Take Lens - Matte Finish, fits Twin Lens Rollei (TLR) Bay I Mount f/3.5 Tessar, Triotar and Xenar Lenses camera trigger The dial on the adapterDescription Specs Compatibility Product Highlights: Specifically designed for Rolleiflex TLRs with Bay I mount f 3. 5 Tessar, Triotar and Xenar Lenses Premium quality metal lens hood helps keep sun, glare, dust & scratches from lens The hood keeps with the classic look of Rolleiflex cameras Metal hood with matte finish, precision designed fit Limited 2 Year Manufacturer Warranty A Rollei lens hood is hard to find in good condition, and almost
