1、Made of good quality alloy, the lens is solid, durable and rustless. 2、Professional optical glass with multi-layer anti-reflection film increases the light transmittance and ensures high quality imaging effect. 3、The lens has 28mm prime focal length, suitable for all kinds of shooting, portrait, scenery, still life and so on. 4、Waterproof, scratch-proof, oil-proof. Exquisite design, lightweight and portable. 5、Suitable for Canon EOS-M mount camera/ for Sony E mount camera/ for Fuji FX mount camera/ for M4/3 mount camera. Features: 1. Made of good quality alloy, the lens is solid, durable and rustless. 2. Professional optical glass with multi-layer anti-reflection film increases the light transmittance and ensures high quality imaging effect. 3. The lens has 28mm prime focal length, suitable for all kinds of shooting, portrait, scenery, still life and so on. 4. Waterproof, scratch-proof, oil-proof. Exquisite design, lightweight and portable. 5. Suitable for Canon EOS-M mount camera/ for Sony E mount camera/ for Fuji FX mount camera/ for M4/3 mount camera. Specifications: Material: Optical Glass + Alloy Color: Black Focal Length: 21 mm Aperture: F 1.8 - F16 Vision Angle Range: 68 ° @ APS-C Minimum Object Distance: 0.12m Focus Mode: Manual Lens Structure: 10 elements in 8 groups Options(Compatible Camera):  for Canon EOS-M Mount Camera, for Sony E Mount Camera, for Fuji FX Mount Camera, for MR/3 Mount Camera for Canon EOS-M Mount Camera: M3 M2 M5 M6 M10 for Sony E Mount Camera: for SONY NEX3, 3N, 5, 5T, 5R, 6, 7, A5000, A5100, A6000, A6100, A6300 This lens is available for A7 series full frame cameras with APS-C mode set. for Fuji FX Mount Camera: XT-1 / XT-2 / X-Pro 1 / X-Pro 2 / XE-1 / XE-2 / XE-2S / X-T10 / XT20 / X-A10 / X-A3 / X- M1 etc. for M4/3 Mount Camera: for Olympus EM-1 / EM-1 Mark2 / EM-10 / EM-10 Mark2 / EM-5 / EM-5 Mark2 / PEN-F / EPL8 / EPL7 Panasonic GH5 / GH4 / G7 / GX7 / GX1 / GF6 / GF5 Size: 8* 6.5 mm / 0.31* 0.26 inch (With Hood) Weight: Approx. 262 g Packing List: 1 * Lens 1 * Lens Cleaning Cloth