Kirk quick release lens plate lp-1 for Nikon, Canon, Sigma, Tamron lenses: 

Nikon 300mm f/2.8 AF Nikkor

Nikon 800mm f/8 MF Nikkor

Canon 200mm f/1.8 AF

Canon 500mm f/4.5 MF

Sigma 100-300mm f/4.0 EX

Sigma 180mm f/2.8

Sigma 300mm f/2.8 EX

Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary

Sigma 180mm Macro f/2.8 EX DG OS HSM

Tamron SP 5-6.3/150-600 DI C/AF VC USD

• Expertly crafted from solid lightweight 6061-T6 alloy aluminum
• Arca-style compatible
• Features precisely contoured non-pivoting lip design
• Captive high strength stainless steel mounting screw
• These features keep the plates from twisting and enhance rigidity
• Anodized to a virtually unscratchable black satin finish
• Measures 89mm long x 40mm wide x 10mm deep
• Weight: ca 75 grams

S817 (13)