Arca Swiss F-Line 141mm Series cameras feature calibrated control blocks that are easily accessible, offering focusing on your right and camera movements on your left. The basic split-rail feature offers a built-in extension up to 600mm and easy camera displacement without moving the tripod. The unlimited vertical swing movement allows the camera to be packed flat, making it a truly compact piece of equipment. The monorail itself slides into a dovetailed rail clamp that screws to the tripod or can be mounted to an optional Arca-style quick-release.