Sigma MC 21 Mount Converter Lens Adapter (Sigma EF Mount Lenses to L Mount Camera) 77mm The Gitzo Quick Release Standard The Gitzo Quick Release Standard Plate is an accessory thats constructed out of high quality steel designed to be constantly fixed to the base of the camera The light stand rack features a width of 119 The Sigma MC 21 Mount Converter Lens Adapter has been designed so that photographers with existing Sigma EF Mount lenses can be mounted onto any L Mount mirrorless camera bodies such as the Sigma MC 21 Mount Converter Lens Adapter includes a removable tripod mount for stable mounting when utilising much heavier lenses