William Optics Ultra-Cat 108 WIFD Apo f/4.8
The William Optics UltraCat 108 is a cutting-edge 108mm apochromatic refractor designed for astrophotographers who demand top-tier performance.
Featuring a 5-element advanced Petzval optical design and a fast f/4.8 focal ratio, it delivers breathtaking edge-to-edge clarity and vivid detail, making it perfect for capturing expansive celestial views. Its robust build, exceptional optics, and innovative features redefine the standard for astrophotography.
The Petzval optical design includes two Super ED glass lenses, one ED glass lens, and lanthanum lenses with advanced fully multi-coated coatings. Together, they deliver sharp, vibrant images with true-to-life colours and significantly reduced chromatic aberration.