The lens collar is tailor-made for Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary Lens, can?t be used with Sigma 150-600mm f5-6.3 DG OS HSM Sports lens. The tripod collar bottom is added 75mm long Arca fit quick release plate feature, can be used with 39mm Arca-swiss fit tripod ball head, panoramic head and clamp directly; more practical than lens collars without QR-Plate.
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