Introducing the Askar 3-inch F3.9 full-frame reducer, meticulously crafted with a specialized 4-element optical design tailored precisely for the FRA600 astrograph. With an impressive 0.7X reduction in focal ratio, this reducer seamlessly enhances the FRA600, significantly reducing exposure times and shortening the focal length to 420mm.

Prepare for an extraordinary expansion of your field of view, unlocking newfound convenience and endless possibilities for both visual observation and astrophotography endeavors. The standard 55mm backfocus ensures optimal performance, while the integrated M48X0.75 (2-inch) filter thread effortlessly accommodates filters, providing convenient filter attachment capabilities.