For Tamron 100-400mm F/4.5-6.3 Di VC USD (A035) Lens (For Canon EF Mount, For Nikon F Mount) lens and other lenses. For Tamron 50-400mm F/4.5-6.3 Di III VC VXD (A067) Lens. Reserved multiple 1/4"-20 & 3/8"-16 thread screw holes at the bottom for attach lens to tripod directly.
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