The kirk klp 310 quick release lens plate is an arca type plate constructed from black anodised aluminium it is suitable for use with a variety of canon nikon sigma tamron and tokina lenses and can be mounted with a 90 or 30 angle depending on the tripod collar being used a stainless steel 14 20 screw for the lens foot is accompanied by 2 smaller screws that can be used as safety stops