Advanced Optical Engineering: Features a sophisticated 4-element optical design tailored for the FRA600 astrograph, ensuring optimal image quality and performance.
Enhanced Focal Reduction: Offers a 0.7X reduction in focal ratio, adjusting the FRA600’s focal length from 600mm to a more versatile 420mm, ideal for a wider field of view in astrophotography.
Exposure Efficiency: Effectively shortens the exposure times needed, facilitating quicker imaging sessions and reducing the impact of tracking imperfections.
Compatibility and Convenience: Includes a standard 55mm backfocus and a built-in M48x0.75 (2-inch) filter thread, making it easy to attach filters directly to the reducer without additional accessories.
Versatile Use: Designed to enhance both visual observations and astrophotographic pursuits, improving field of view and image brightness.
Streamlined Astrophotography Setup: Integrates seamlessly with the FRA600, simplifying the imaging train setup and ensuring a secure connection for reliable imaging sessions.
The Askar 3 inch F3.9 full frame reducer is a critical tool for astronomers and astrophotographers looking to expand their visual and photographic capabilities, providing a broader field of view and faster imaging times without sacrificing detail or quality.
Specifications
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