Metal Lens Collar Foot Tripod Mount Ring for Sigma APO 120-400mm F4.5-5.6 DG OS HSM,APO 80-400mm F4.5-5.6 EX OS Lens, 80-400mm F4.5-5.6 EX DG OS Lens

Metal Lens Tripod Mount Ring IS-SM1550 Improved from Sigma TS-31
for Sigma AF APO 50-500mm F4.5-6.3 DG OS HSM Lens and so on
Bottom is ARCA Type Quick Release Plate Feature
Compatible with Ball Head of RRS / ARCA-SWISS / KIRK Fit Features:1. Referencing to Sigma original TS-31 design and optimized for this new tripod mount ring, more practical than the original lens collar, improved details, quick release plate feature is added;

2. Made of Aviation Aluminum, CNC precisely machined, surface anodic oxidation, unibody design, built-in non-slip paster, with copper knob and stainless steel anti-skid nail;

3. Net weight is about 195g, inner diameter is about 85.5mm, width is about 18mm; bottom is quick release plate of 97.5mm 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-31):AF APO 50-500mm F4.5-6.3 DG OS HSM
AF APO 120-300mm F2.8 DG OS HSM
AF APO 120-400mm F4.5-5.6 DG OS HSM
AF APO 150-500mm F5-6.3 DG OS HSM
APO 50-500mm F4.5-6.3 DG OS HSM
APO 50-500mm F4-6.3 EX DG / HSM
APO 50-500mm F4-6.3 EX RF / HSM
APO 80-400mm F4.5-5.6 EX OS
APO 80-400mm F4.5-5.6 EX DG OS
APO 120-300mm F2.8 EX DG OS HSM
APO 120-400mm F4.5-5.6 DG OS HSM
APO 150-500mm F5-6.3 DG OS HSMPackage Including:1 x iShoot Lens Collar Support Tripod Mount Ring IS-SM1550
(The other items in the photos not listed here are for illustrating only, not included)