1. Material: Aluminum alloy + optical glass 2. Color: Black 3. Lens mount: C 4. Focal length: 25mm 5. Aperture: F1.8 6. This camera lens can provide your camera with a super clear field of view 7. The lens uses a 25mm lens and advanced optical elements to ensure full clarity and effective light conductivity. The iris can be adjusted manually according to the intensity of the available light. 8. Focal length 25mm, f/1.8 aperture, suitable for low light environment Application areas: 1. Take pictures of people, landscapes, objects, etc. 2. Aperture F1.8, suitable for macro shooting, static objects, small objects, sketches, insects and small animals, etc. 3. Aperture F2-F4, suitable for shooting portraits and static objects, dynamic shooting, travel, wedding, humanities, etc. 4. Aperture F6-F8, suitable for shooting distant scenes, landscapes, sports, beaches, low altitudes, plants, buildings, etc. 5. Aperture F11-F22, suitable for shooting objects with a strong aperture, such as the sky. 6. With the adapter ring of Chuangan Optoelectronics, the camera brands/models can be adapted as follows: - With C-M4/3 adapter, can be used for Olympus PEN E-P6 / E-PL7 / E-PL6 / E-PL5 / E-PM3 / E-PM2 / E-P3 / E-PL3 / E-PM1 E-PL2 / E-PL1s / E-PL1 / E-P2 / E-P1 cameras. - With C-M4/3 adapter, can be used for Panasonic Lumix DMC-GF7K / DMC-GF7C / DMC-GX7K / DMC-GX7 / DMC-GM1 / DMC-GH3HGK / DMC-GH3AGK / DMC-GF6 / DMC-GH3 / DMC-G5 / DMC-GF5 / DMC-GX1 / DMC-GF3 / DMC-G3 / DMC-GH2 / DMC-GF2 / DMC-G2 / DMC-G10 DMC-G1 / DMC-GH1 / DMC-GF1 cameras. - With C-NEX adapter, can be used for SONY A7S /A7R /A7 II /A7 /A6000/A5100 /A5000 /A3000 / QX1NEX-5T / NEX-3N /NEX-6/ NEX-5R/ NEX-F3 / NEX -7 / NEX-5C / NEX-5N NEX-C3/ NEX-5 / NEX-3 / NEX-VG20EH Camcorder/ NEX-VG10E Camcorder - With C-EOSM adapter,can be used for Canon EOSM / M2 / M3 cameras. - With C-FX adapter,can be used for Fujifilm X-E2 / X-E1 / X-Pro1 / X-M1 / X-A2 / X-A1 / X-T1 cameras.