Elevate Your Guiding Precision with Askar 52mm F4 Guide Scope Enhanced Optical Performance: Features a 52mm aperture and 208mm focal length with a robust F4 speed, making it highly effective for deep-sky object (DSO) imaging and long-exposure astrophotography. Significant Light Gathering: Offers a 164% larger aperture area compared to the 32mm model, significantly enhancing its light-gathering capabilities to a limiting magnitude of 10.4. Dual-Use Functionality: Not only designed for guiding but also suitable for visual observations, adding versatility to your astronomy setup. Advanced Optical Design: Incorporates a doublet objective lens with precise X&Y-axis fine adjustments, ensuring high accuracy and stability in tracking celestial objects. User-Friendly Focusing: Equipped with a helical focuser for smooth, precise focusing adjustments and an M3 locking screw for secure positioning. Versatile Mounting Options: Comes with a standard Vixen-style base, plus a 1/4" threaded hole and an M4 threaded hole for easy attachment to various mounts and setups. Comprehensive Adapter Compatibility: Includes a 1.25” adapter and an M42 threaded adapter to meet the connectivity needs of various imaging trains. Sleek, Durable Design: Available in black or silver, featuring high-quality CNC machining and a uniform, textured coating that offers both aesthetic appeal and enhanced durability. Lightweight and Compact: Weighing only 631g and with a travel length of 25mm, it's designed for easy portability without compromising performance. The Askar 52mm F4 Guide Scope is an essential tool for astrophotographers seeking a reliable, high-performance guiding scope that promises more accurate tracking and enhanced imaging quality. Specifications 52mm F4 Guide Scope Aperture 52mm Focal length 208mm Focal ratio f/4 Objective type doublet Overall length 212mm OTA Weight 0.63kg Rear-end adapter type M42×0.75 adapter 1.25"adapter Software and Docs 52mmF4 Guide Scope User's Manual