William Optics RedCat 51 III WIFD f/4.9 Petzval Refractor Telescope

• Newest version (gen III) of the best-selling RedCat 51
• 4-element Petzval refractor telescope
• 250mm focal length, f/4.9 focal ratio
• Premium quality FPL-53 glass
• Brand new WIFD focuser design
• Soft case, dovetail bar, tube rings, and saddle included

William Optics RedCat 71 348mm f/4.9 Petzval Apo astrograph

The WO Cat71 is a 71-mm f/4.9 refractor using a Petzval design with a doublet front element incorporating FPL-53 glass, plus a single central element and a single rear lens. By this design, our WO Cat71 provides a flat image plane without any additional flattener and the image circle is over 45mm. WO Cat71 is designed primarily for imaging, making it an astrograph.