Feature: 1. Adopted alloy body with strong texture, exquisite appearance and fine craftsmanship. 2. The 900mm telephoto lens is a great choice for photographing birds and wildlife as well as over great distances. 3. Greatly reduces the size and weight of the lens, making it more convenient to use and carry. 4. 8 groups of 8pcs optical structure, multi‑layer MC coating can suppress lens flare and ghosting, improve contrast and color authenticity. 5. The large aperture of F8 greatly increases the amount of light entering in order to obtain a more reliable and safe shutter time. 6. Available for M4/3 mount cameras, including for GH5/GM10/GX8/GF9/G7/G85, for Olympus E‑M1,E‑M5,E‑M10, etc. Specification: Item Type: Camera Lens Material: Alloy + optical glass Color: As Pictures Shown Weight: Approx. 1032g/36.4ozFocal length: 900 mm Aperture: F8 Mount: for M4/3 mount Applicable model: for Olympus M4/3 Mount Camera Optical structure: 8 groups of 8pcs Perspective: 3 ° Coating: multi-layer MC coating Front filter size: 105mm/4.1in Focus mode: manual focus Anti-shake function: none Closest focusing distance: 3.5m Applicable scene: landscape, architecture, characters, insects, tourism, business, sports, wedding, humanities, etc How to use： 1. Align the identification point of the lens mount with the identification point of the adapter ring, and rotate it clockwise. When you hear a "click" sound, it means that the lens has been installed in place 2. Align the identification point on the lens adapter ring with the adapter ring to the identification point on the fuselage, and rotate clockwise when you hear a "click" sound, it means it is installed in place 3. Press and hold the camera lens release button and rotate it counterclockwise to remove the lens together with the adapter ring 4. Install the adapter ring release button and rotate it counterclockwise, the adapter ring can be removed from the lens. Package List: 1 x Mirror Lens1 x Adapter Ring1 x Storage Bag1 x Manual1 x Wrench