Vertical part can be located in different position along a base. Original Sigma adapter does not have sufficient clearance for some lenses to be mounted on monopods, tripods and in combination with L brackets.
This foot assemble let you use camera and Sigma adapter with tilt shift lenses and telephoto lenses equipped with foot collar. You can also use Arca foot to MC 21 without. Markins including level release clamp. Really Right Stuff, including level release plate. Vanguard ABH Series Ball Heads (ABH is Vangaurds only Arca-Compatible series).
Other Arca swiss type products. Black Hard coat anodized surface. Weight 2.0 oz (56 g). One 1/4-20 x 0.400 inch captive style screw.
Hex key for included screws. This item is in the category "Cameras & Photo\Tripods & Supports\Other Tripods & Supports". The seller is "krosno65" and is located in this country: US. This item can be shipped worldwide.