- Shoot IS-SM1550 Tripod Mount Ring for Sigma AF APO 50-500/4.5-6.3DG OS HSM etc features an RRS/Arca-Swiss fit quick release interface.
- Made of Aviation Aluminum, CNC precisely machined, surface anodic oxidation, with stainless steel screw, lightweight design of hollow, weighs about 195g;
- Referring to and modified from Sigma original TS-31 standard design, bearing is enhanced, details are improved, and added the features of finger position and quick release plate, more practical;
- Tripod ring diameter is about 85.5mm, the use of embedded PP material to increase the damping; accurate bayonet, same to the original one, easy to quickly disassemble and adjust the body composition;
- Tripod ring comes with quick-release plate structure, with 1/4″ and 3/8″ screw holes;
- Quick release plate is AS standard, compatible with RRS / ARCA-SWISS / KIRK / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for IS-JZ30 / IS-JZ50 / IS- JZ64 / IS-QJ58 / IS-QJ64 / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK.
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