Kirk LP-64 Replacement Lens Foot for Nikon 70-200mm f/2.8E FL ED VR (1st Version)

Kirk LS-2 Lens Support for Nikon 200-500mm f/5.6 E Sony 70-200mm f/4 FE OS (Requires Proper Lens Collar) $53 Kirk LP-56 Quick Release Replacement Lens Foot for Canon 200mm f/2.8 L $25 Kirk LP-59 Replacement Lens Foot for Canon 300mm f/2.8 L IS II USM $45 Kirk LP-61 Replacement Lens Foot for Canon 100-400mm f/4.5-5.6 L IS II USM $90

Nikon AF-S NIKKOR 70-200mm f/2.8 E FL ED VR Autofocus Lens $600 Tamron SP 150-600mm f/5-6.3 DI VC USD G2 AF Lens For Nikon $299 Canon Tripod Mount Ring C(W II) for 70-300mm f/4-5.6 L IS USM Lens $95 Canon Tripod Mount Ring A II(WII) for 70-200mm f/4 L IS II USM Lens $295 Sigma 70-200mm f/2.8 APO DG EX HSM OS Autofocus Lens for Nikon $100 Leica Large Ball Tripod Head $10 Sigma 150-500mm f/5-6.3 APO DG HSM OS Lens for Canon EF-Mount $212 Canon Tripod Mount Ring B(B) for Canon MP-E 65mm f/2.8 1-5x Macro 100mm f/2.8 USM Macro (Requires 100 ADAPT) 180mm f/3.5L USM Lens $239