William Optics
Internal Focus Design

The William Optics Internal Focus Design (WIFD) features a patented mechanism (Patent number: US 11,693,225 B2), marking a revolutionary chapter in telescope design and functionality.

Center Balanced

Relocating the focuser to the center of the telescope, the WIFD system addresses the issue of tube tilt caused by the weight of accessories and cameras.

Its balanced structure and superior rigidity eliminate weight limits for photographic equipment. The precise internal sliding of fixed optics prevents image shift, ensuring stable and clear observations.

Additionally, the dust-free environment also makes the focuser easier to maintain.

Smooth and Accurate Focusing

The precision-engineered Rack & Pinion system in WIFD Focuser ensures smooth and accurate focusing for both visual observation and astrophotography. Its robust design minimizes backlash and delivers reliable performance, even when supporting heavy imaging equipment.

Dual Speed, Ultimate Precision

The 1:10 fine focuser in WIFD series enhances the focusing process by enabling meticulous fine-tuning. This high-ratio mechanism allows for smooth, incremental adjustments, ensuring optimal clarity and sharpness in your celestial images.

Keep track of temp information

A temperature gauge is included in the WIFD focuser knob, allowing astrophotographers to quickly access weather information and adjust equipment settings.