B4 LENS TO MICRO FOUR THIRDS CAMERA ADAPTER with Heavy Duty Tripod Mount Use professional Canon, Fujinon Nikon 2/3" B4 lenses on: Panasonic AF100 / AF101 / AF102 Panasonic G1, GH1,GH2, GH3, GH4, GF1, GF2 G2, G3 Olympus PEN E-P1, E-P2, E-PL1, E-P3, E-PM1, E-PL3, OM-D E-M5 Also: The NEW Blackmagic Design Cinema Camera with MFT (Micro Four Thirds) Mount Deluxe adapter with tripod mount allows use of B4 lenses without a complicated rail system. The tripod bracket has 1/4" and 3/8" screw mounts. Adapter is made of Duraluminum ( hardened alloy of aluminum ) anodized black. The adapter was manufactured with pinpoint precision and high strength to support heavy video lenses. 2/3" lenses in 1x do not cover the whole sensor of micro 4/3 camera so you should use this adapter with 2x extender. You can use 2/3" lenses in 1x without vignetting on Panasonic GH2/GH3/GH4 ( enable 1:1 crop mode). The adapter is adjustable for back focus however it should not require any adjustment. Set the back focus on your lens. Listing is for adapter only. Cameras, lenses, tripods shown for example and are not included. FREE SHIPPING WITHIN THE UNITED STATES ONLY.