The William Optics RedCat 51 Gen 3 is a Petzval APO refractor that integrates the innovative WIFD (William Optics Internal Focus Design). This third-generation RedCat delivers a flat imaging field with an internal focusing mechanism that improves balance and eliminates vignetting.
The telescope features direct ZWO EAF compatibility, a built-in 2" filter holder, and a tilt adapter for fine orthogonality adjustments—making it a turnkey solution for wide-field astrophotography and travel imaging setups.
