The Askar 80ED is a telescope with an aperture of 80mm, a focal length of 560mm, and a focal ratio of F7. The optical lens features a two-element structure, consisting of one ED glass and one standard achromatic glass. Features Two Usage Modes — Discover the Beauty of the Universe: Can be used for both visual observation and astrophotography, enabling you to do more. Reversible & Detachable Lens Hood: Retractable design reduces stray light when attached, but can be reversed to minimize size (just 404mm long) for convinient storage. Single ED Element: Minimizes chromatic abberation while improving resolution, contrast, and color fidelity. Built for Functionality: Includes a 200mm vixen-style dovetail plate (compatible with EQ mounts and tripods), a hollowed handle bar (allowing for accessory attachment), and an enlarged tube ring thumb locking screw. Rack & Pinion Focuser: Get your focus close with the coarse adjustment knob, then dial in your final focus with the 1:10 fine adjustment knob. 2-Inch Adapter: 3-point locking screw fixation. Dual Finder Base Slots: Compatible with most finderscopes on the market. Bottom Locking Screw: Supports electronic focuser. Specifications Aperture 80mm Focal Length 600mm Focal Ratio f/7.5 Objective Type Quadruplet air-spaced APO (including two ED glass) Image Circle Optimized for APS-C Overall Length 404mm（with dew shield contracted) 505mm（with dew shield fully stretched) OTA Weight 1.7kg Gross Weight 2.0kg Rear-end thread type 2" Adapter Optical Path Diagram SPOT Diagram Longitudinal Aberration
Related
Related