CAT 61 WIFD

William Optics CAT 61 WIFD

The William Optics CAT 61 WIFD is a premium 61mm apochromatic astrograph designed for astrophotographers seeking sharp, color-accurate images in a compact package. Featuring the innovative WIFD (William Optics Internal Focuser Design) system, it delivers rock-solid focus stability without image shift, ensuring precise results even with heavy imaging setups.

Its three-element APO design with FPL-53 glass minimizes chromatic aberration, producing crisp stars across the field. The integrated rotator with camera angle markings makes framing effortless, while the retractable dew shield keeps the scope portable and travel-friendly.

Built with CNC-machined components and signature William Optics styling, the CAT 61 WIFD combines elegance with performance. Whether used as a wide-field astrograph or paired with accessories for imaging versatility, it offers professional-grade optics in a lightweight, durable body.

Key Features:

• 61mm triplet APO with FPL-53 glass for excellent color correction

• WIFD zero image-shift focuser with internal focusing mechanism

• Smooth camera rotator with angle markings for easy framing

• Retractable dew shield for portability

• Robust CNC-machined construction with signature William