1、Compatibility: The adapter allows for 42mm screw mount lenses to be compatible with for M4 M3 mount cameras, including models such as for Lumix G1, GH1, GF1, G10, GH2, GF2, G3, GF3, GX1, GF5, G5, GH3, GF6, G6, GX7, GX80, GX85, GX7 Mark II, GM1, GH4, GM5, GF7, G7, GX8, G85, DC GH5, DC G9, for PEN E P1, E P2, E PL1, E PL1s, E PL2, E P3, E PL3, E PM1, E PL5, E PM2, E P5, E PL6, E PL7, PEN F, E PL8, for OM D E M5, E M1, E M10, E M5 II, E M10 Mark II, E M1 Mark II, etc. 2、Aluminum Alloy Material: Made of premium aluminum alloy material and featuring an anodized oxidation process, this camera lens adapter showcases meticulous workmanship, ensuring durability and great wear proof performance. 3、Precise Fit: The adapter ring snugly fits the camera and lens, ensuring a tight and secure connection, while also allowing for convenient and quick installation and removal. 4、Rich Functionality: This lens mount adapter supports full manual control, including manual focus and exposure, aperture priority, and features a light absorbing coating, allows for unlimited focus. 5、Compact and Portable: This lens mount adapter is small and lightweight, which can easily fit in your bag or pocket, making it a professional adapter choice for photography enthusiasts.