Sony a7 / a7R. With 39mm AS standard interface, can be used with IS-5840QJ / IS-6440JZ 2D ball head, IS-QJ58 / IS-QJ64 panoramic head, and IS-JZ50 / IS-JZ64 clamp, compatible with RRS / ARCA-SWISS / KIRK / Wimberley / MARKINS / SUNWAYFOTO / kangrinpoche / BENRO / SIRUI ball head of AS standard interfaces.
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