【Manual Focus】 No electronic contacts. Diaphragm control of the lens is set manually. Supports manual control, manual focus, manual exposure and focus to infinity; 【Unique Design】The appearance of the 4th generation lens mount adopts a twill knurled design, and the key points are treated with non-slip, making it easier and more comfortable to hold. On the other hand, the fine carving of CNC machining enhances the texture. 【Camera Mount】 Compatible for MFT (Micro-4/3) Mount mount cameras, include Olympus PEN E-P1, E-P2, E-P3, E-P5, E-PL1/s, E-PL2, E-PL3, E-PL5, E-PL6, E-PM1, E-PM2, PEN-F,Air A01, OM-D E-M1/II/X, E-M5/II, E-M10/II/III, Panasonic Lumix DMC-G1, G2, G3, G5, G6 cameras etc. 【 Material】High-quality copper and aluminum alloy ;High precision and durable, Install and remove smoothly; Matting varnish inside to avoid light reflection; 【Pre-purchase Verification】 Please ensure your lens mount and camera mount before purchase in case of unnecessary returning. We are here for help if you have any question about adapters. adapter