iShoot Tripod Mount Ring Lens Collar for Sigma TS-21 AF APO 70-200mm f2_8 EX DG OS HSM 70-200mm f2_8 EX DG Macro HSM 70-200mm f2_8 II EX DG Macro HSM-Bottom is Camera Quick Release Plate

Main Features: 1. Referencing to Sigma tripod socket TS-21 design and optimized, more practical than the original tripod ring, improved details, quick release plate feature is added; 2. The lens collar is made of Aviation Aluminum, CNC precisely machined, surface anodic oxidation, split design, built-in non-slip paster, copper knob, stainless steel anti-skid nail; 3. Net weight is about 135g, inner diameter is about 71mm, width is about 17.5mm; bottom is quick release plate of 65mm long, reserved with 1/4 and 3/8 screw holes; 4. Quick release plate is AS 39mm standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK clamp. Suitable for Sigma lens (Referring to Sigma original TS-21): AF APO 70-200mm F/2.8 EX DG OS HSM AF APO 70-200mm F/2.8 EX DG MACRO HSM AF APO 70-200mm F/2.8 II EX DG MACRO HSM AF APO 50-150mm F/2.8 EX DC OS HSM AF APO 300mm F/2.8 EX DG HSM AF MACRO APO 150mm F/2.8 EX DG HSM AF MACRO APO 150mm F/2.8 EX DG OS HSM AF MACRO APO 180mm F/3.5 EX DG HSM AF MACRO APO 180mm /EX DG OS HSM AF APO 100-300mm F/4 EX DG HSM APO 70-200mm F/2.8 EX DG HSM APO 120-300mm F/2.8 EX DG HSM Package Includes: 1 x iShoot Tripod Mount Ring IS-SM720 (The other items in the photos not listed here are for illustrating only, not included)