Adapter Arri PL-mount Art Photo Group.PL - is a lens mount developed for use with both 16 mm and 35 mm movie cameras.The PL stands for "positive lock".It is the successor mount to the Arri bayonet; unlike the bayonet mount, however, it is incompatible with older Arri-mount lenses, due to the larger diameter.(This can be rectified with an adapter relatively easily, as the flange focal distance is identical.)Cameras:35 mm: Arriflex 35III (later models), Arriflex 35BL3 (later models), Arriflex 35BL4, Arriflex 35BL4S, Arriflex 535, Arriflex 535B, Arriflex 435, Arriflex 435ES, Arriflex 435 Advanced, Arriflex 435 Xtreme, Arricam ST, Arricam LT, Cinema Products FX35, Moviecam SuperAmerica, Moviecam Compact, Moviecam SL, Aaton 3516 mm: Arriflex 16SR2 (later models), Arriflex 16SR3, Arriflex 16SR3 Advanced, Arriflex 416, Aaton XTRplus (standard), Aaton XTRprod (standard), Aaton A-Minima65 mm: Arriflex 765, ARRI ALEXA65 (uses the XPL-mount)Digital: Arri Alexa, Arriflex D-20, Arriflex D-21, ALEXA65, ALEXA LF, Dalsa Origin, Dalsa Origin II, Sony F35, Sony F65, Phantom, Canon C300 PL, AJA Cion, Blackmagic Design URSA, Blackmagic Design Cinema Camera PLPL-mount available with an adapter: Ikonoskop A-Cam dII, Silicon Imaging SI-2K, Sony F3/F5/F55, Blackmagic Cinema Camera mFT/Pocket Cinema CameraPL-mount available with a third-party adapter: Sony α7S, Panasonic GH4PL-mount optional by user choice: Canon EOS C300, Canon EOS C500, Red One, Red Epic, Red Scarlet), Digital Bolex (uses interchangeable mounts), Blackmagic URSA Mini Pro (uses interchangeable mounts) This Adapter in NEW status.