The William Optics Redcat 71 is an apochromatic astrograph designed for premium astrophotography performance while remaining a compact and easy to travel with telescope.  Providing completely color-free APO performance, this refractor features as 4 element design in 3 groups in a 2-1-1 configuration consisiting of a FPL-53 Petzval doublet primary group, a single central lens element and a single rear lens element.   This configuration allows for a flat field of view without the need for a flattener.  The result is a perfectly flat, color-free, tack sharp field of view that’s over 45mm. 

• 4 element APO design for a flat image plane without the need for a flattener. 
• FPL 53 optical glass. 
• Built in precision helical focuser, camera rotator and tilt adjust. 
• Includes a 48mm male thread and is t-ring ready to adapt your preferred camera. 
• Includes a Bahtinov mask end cap for focus fine tuning. 
• Carry case, mounting rings, handle and dovetail included. 

2 year manufacturer warranty.