Askar 3" 0.76x Full-Frame Reducer - Specifications and features
Designed to maximize the performance of the 80PHQ f/7.5 astrograph, the Askar reducer 3 inches 0.76x reduces the focal ratio to f/5.7 and the focal length to 456 mm. Its triplet design enhances image quality and star sharpness right to the edges of the field, making it an ideal choice for astrophotographers in search of fine detail and an extended field of view. What's more, this reducer is fully compatible with full-frame sensors, guaranteeing complete image coverage without vignetting.
Askar 3" 0.76x Reducer specifications
- Focal report : f/5.7 after reduction, ideal for imaging large celestial objects.
- Focal length : 456 mm after reduction, for fast, wide image capture.
- Lens design : Triplet, for optimum correction of aberrations.
- Rear focal length : 55 mm, standard-compliant for maximum compatibility.
- Connectivity : Multifunctional adapters with integrated M48*0.75 thread for 2" filters, for easy installation of filters and accessories.
Additional dimensions and specifications
- Outside diameter : 68 mm
- Total length : 75 mm, compact for stable mounting on existing configurations.
- Front thread : M64*0.75, compatible with various optical systems.
- Adapters supplied : M681, M540.75, and M48*0.75, for easy, flexible connection to other equipment.
Benefits for users
This reducer is specially designed to shorten the exposure time required, making deep-sky astrophotography more practical and efficient. By increasing the field of view, it enables users to capture large celestial objects with exceptional image quality, expanding the possibilities for deep-sky enthusiasts. Its compatibility with full-frame sensors ensures a sharp, well-covered image, even on large sensors, with no loss of peripheral detail.
