For Sigma 40mm f/1.4 DG HSM Art Lens. Sigma 40mm f/1.4 DG HSM Art Lens. 1 x iShoot Tripod Mount Ring IS-SM40 for Sigma 40mm f/1.4 DG HSM Art Lens. Bottom quick release plate is AS standard, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / MARKINS / PHOTOCLAM / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT tripod ball head of Arca 39mm fit, suitable for iShoot IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-Z60BK / IS-JZ70MFT / IS-JZ80BK / IS-JZ85.
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