Sharpstar 61EDPH Mk III ED Triplet Apochromatic Refractor Telescope Ultimate Portable Astro Photo and Nature Photography Instrument The Sharpstar 61EDPH Mk III has long been a favorite among astrophotography enthusiasts. With optimized features and enhanced performance, this telescope is the perfect choice for capturing stunning celestial images. Key Features 61mm aperture with f/5.9 three-element full separation optical design Includes two ED lenses for superior imaging quality New 2.5" dual-speed rack and pinion focuser with 10:1 fine focus Universal interfaces for both 2" and 1.25" eyepieces 360-degree angle adjuster for optimal positioning Universal dovetail bar and multifunctional handle included Finderscope mounting bracket The 61EDPH Mk III features a triplet air-spaced APO design and two low dispersion ED glass elements for excellent imaging performance. With a focal length of 360mm and a focal ratio of 5.9, this telescope supports a 44mm full-frame imaging circle, making it ideal for both visual observation and astrophotography. This model has upgraded its handle to a multifunctional design that accommodates a universal Vixen-style finder scope base. Additionally, the 61EDPH Mk III is equipped with a 200mm long Vixen-style dovetail plate for easier attachment to equatorial mounts, enhancing balance and usability. Its smooth lines and classic red and white color scheme reflect high-quality CNC machining and durable surface finishes. Reducer and Flattener (Optional Accessory) This telescope can be enhanced with a dedicated full-frame reducer that connects via M68 × 1 threads. This reducer allows for an extended back focus of 75mm, reducing the focal ratio to f/4.4, making it an excellent choice for deep-sky astrophotography. Specifications Sharpstar 61EDPH III Parameters Aperture Size 61mm Focal Length 360mm Focal Ratio f/5.9 Objective Lens Triplet air-spaced APO (includes two ED glasses) Limiting Visual Magnitude 10.7 Resolution 1.93 arc seconds Tube Length 272mm (Dew shield contracted) OTA Weight 1.48kg Gross Weight 1.92kg Tube Outer Diameter 75mm Included Accessories Telescope ring, dovetail plate, handle
