Canon EF 70-200mm f/2.8L IS II brand_Domke Note that the #1 tube

Note that the #1 tube is an "accessory" tube and is designed to wedge between another tube- or lens- and a mount

as you might have guessed

and full manual or automatic control- and the ability to shoot RAW files

This prism is in very good cosmetic condition

Canon EF 70-200mm f/2.8L IS II brand_Domke Note that the #1 tubeThe Canon 70 200mm f2. 8L IS II is a pro quality telephoto zoom lens for any Canon EF camera. With sharp glass, quick focusing, fast f2. 8 constant aperture, and an effective image stabilizer, this is an indispensable lens for shooting events or sports. Great function and glass is clean, with only very minor internal dust. In excellent cosmetic condition, with very minor wear. Includes original hood, and softcase.