Askar 0.7X Full Frame Reducer for FRA400C Refractor - FRA400C-RED Seestar Smart Telescope 97% transmission at 656nm (H-alpha)

97% transmission at 656nm (H-alpha)

9 Doublet APO OTA from William Optics is provided in Space Grey (TG) color finish

but folds to just 8" x 4" for easy transport

Includes standard 2" size

Askar 0.7X Full Frame Reducer for FRA400C Refractor - FRA400C-RED Seestar Smart Telescope 97% transmission at 656nm (H-alpha)This triplet reducer is specifically designed for the Askar FRA400C, and will reduce the overall focal length to 280mm and the focal ratio to f 3. 9. Adding the reducer to the FRA400C will still allow full frame imaging and the back focus is a standard 55mm. The shorter focal ratio (from f 5. 6 to f 3. 9) enables the telescope to achieve a wider field of view and faster exposure times, making it ideal for capturing large nebulae, star clusters, as