iShoot Lens Collar Tripod Mount Ring IS-SL730 Compatible with Panasonic Lumix S 70-300 f/4.5-5.6 Macro OIS Lens Bottom is 39mm ARCA Fit Quick Release Plate, Compatible with RRS / ARCA-SWISS Fit Tripod Head & Clamp Main Features: 1. The tripod mount ring is tailor-made based on the shape and structure of Panasonic Lumix S 70-300 f/4.5-5.6 Macro OIS lens, retains the switch function and is installed close to the lens mount. No stickers can be attached to the mounting part. After installation, only support horizontal shooting, not support vertical shooting, and the tripod ring Can't rotate; 2. The corners of the tripod ring are polished, and the surface contacting the lens is affixed with 3M plastic film, preventing the lens from scratches; the inner diameter of the lens holder is about 74.5mm, the maximum width of this contact surface is 22.5mm; net weight is about 175g? 3. The tripod collar bottom is added 50mm long Arca fit quick release plate feature, can be used with 39mm Arca-swiss fit tripod ball head, panoramic head and clamp directly; more practical than lens collars without QR-Plate; also reserved 1/4" and 3/8" screw holes and stainless-steel anti-slip screws for fixing lens to tripod directly? 4. The tripod ring is made of Aviation Aluminum, CNC precisely machined, hollow-out weight reduction design, polished and surface anodized finish. The appearance and exquisite workmanship are much better than similar products made by mold. Compatible with: Panasonic Lumix S 70-300 f/4.5-5.6 Macro OIS Lens Can't be used for other lenses Package Includes: 1 x iShoot Tripod Mount Ring IS-SL730 (Note: The other items in the photos not listed here are for illustrating only, not included)