Neewer Automatic Macro Extension Tube DG 10MM+16MM FT1 for Micro Four Thirds M4/3 Camera, fits Olympus PEN E-P1 P2 P3 P5 E-PL1 PL1s PL2 PL3 PL5 PL6 E-PM1 PM2 OM-D E-M5 E-M1 Panasonic Lumix DMC-GH1 GH2 GH3 GX7 G1 G2 G10 G3 G5 G6 GF1 GF2 GF3 GF5 GF6 GX1 GM Two Tubes: 1mm,16mm Diameter of the tubes: Approx. 61.5mm metal mount part,and plastic body Suitable for:Camera and lens with micro four thirds M4/3 mount