Tripod Collars
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Vello TC-N1 Tripod Collar for Nikon 70-200mm f/4 G Lens
Professional Grade Improves Tripod-Mounted Lens Balan...$49.95 -
Vello Tripod Collar A (White) for Canon 200mm f/2.8, 70-200mm f/4 & 400mm f/5.6
Professional Grade Improves Tripod-Mounted Lens Balan...$49.95