Possibility to turn the camera body upside down by using the incorporated quick mount. Basic format 6x7 - 6x9,Graflok type mount, coupling the rotating system by a quick 4 point, 8° of rotation.Click stop every 90°.Setting of the format in the 360° whithout discontinuity. A lever can block the rotation in order to facilitate the ease of both attaching and removing accessories. Interchangable backs available in 6x12 and 4x5" formats