Αξεσουάρ Τηλεσκοπίων Skywatcher Evostar 150DX ED 0.77x focal length reducer

The Skywatcher Evostar 150DX ED 0.77x Focal Length Reducer/Field Flattener is a premium optical accessory specifically crafted to improve imaging performance for the Sky-Watcher EvoStar 150DX telescope. By reducing the telescope’s native focal ratio from f/8 to f/6.2, it shortens the focal length from approximately 1200mm to about 924mm. This results in a 23% faster optical system, allowing a remarkable reduction in exposure times—by roughly 66% compared to the native f/8 setup.

Key Technical Specifications:

• Optical Design: Fully multi-coated optics maximize light transmission and minimize internal reflections for cleaner images.
• Clear Aperture: Large 2.7-inch (68mm) clear aperture minimizes vignetting and sustains image brightness, critical for astrophotography.
• Field of View and Image Circle: Fully illuminated 34mm image circle, offering a 2.22 x 1.48-degree field of view with full-frame cameras.
• Backfocus Distance: Requires 55mm of optical backfocus, adjustable with included adapters.
• Mechanical Design: CNC-machined black anodized aluminum housing for durability and precise optical alignment.
• Threading: Standard M48 x 0.75 thread compatibility with typical astrophotography accessories.

This reducer/flattener is specifically tailored for the EvoStar 150DX refractor’s focuser system to ensure perfect optical matching with premium optics that minimize chromatic aberrations and maximize image sharpness and color fidelity. In summary, the Skywatcher Evostar 150DX 0.77x Reducer/Flattener enhances your telescope’s capabilities by producing a flatter, wider, and faster imaging field, making it an essential accessory for astrophotographers.