The Phase One L-BRACKET is featured with the Arca Swiss type tripod which is used for portrait as well as landscape orientation. This camera L-bracket is compatible with the Arca Swiss type quick release.The L Bracket for Phase One 645DF enables the camera to be mounted horizontally or vertically as per the user’s requirementThe camera L-bracket has a leather hand strap with a mild coat of mink oil which gives a shine to itOptional screws are available for other tripod heads