Features: Brand new and high quality Support single shoted star guidance and photography. Support the combination of two cannons and the combination of binoculars (the normal pupillary distance for adult is 58-64). Pair with a standard 1.25inch eyepiece for direct focusing, it can used as search star, guide, / camera. It can attach a eyepiece to become a astronomical telescope. It can attach a guiding camera for guiding / space photography. It can attach a mirrorlesses camera for astronomical / ground scenerys shooting. Specifications: Component: Metal Color: Black and Blue Size:Approx. Total Length: 154mm±0.5mm/6.06in±0.02in(include extension round 166mm) Lens diameter:40mm Lens focal length:130mm Focal ratio:F3.5 Objective structure: 3pcs Round size: 1/2.7(suitable for quality guiding and small frame camera) Angle:2.96degree Adjusting stroke:14mm-0.5 End interfaces:1.25inch interfaces Thread specification: M42x0.75mm(T2interfaces) Base interfaces:3pcs 1/4inch screw interfaces Quantity: 1Pc Package Includes: 1pc Telescope Lens note: Please allow 1-3cm error due to manual measurement. please make sure you not mind befores you bid. Due to difference between different monitors, the picture may not reflect the actual color the item.