William Optics RedCat 71 WFID APO Petzval OTA (L-RC71RDIII)

William Optics RedCat 71 WFID APO Petzval OTA (L-RC71RDIII)32m Uniguider NOT included (Effective March 30, 2025) RedCat 71 Optical Design The William Optics RedCat 71 is the bigger brother to the highly regarded RedCat 51, which has been raved about by astrophotographers since its release. Building on the RedCat 51's success, the RedCat 71 keeps the same f 4. 9 focal ratio and Petzval optical design. This optical design uses four lens elements instead of the three found in triplet refractors. By incorporating

You no longer have to constantly shift a Dobsonian to keep objects centered for sharp viewing

The three-axis adjustment

The absence of distortion in the eyepiece enables you to oversee the full field at once and to easily find the best viewing position

enhancing details in celestial objects

perfect for imagers and visual observers alike

75 filter thread inside) Total Length 842

Ideal for fast optical system

grit and sand

EdgeHD 800

55mm Plössl

and one-half degree in diameter) on a tilted plate at the top of the finder

08 cm Weight 25