WILLIAM OPTICS ULTRA-CAT 108 f/4.8 REFRACTOR Colour:BLACK The Double telescope option is

The Double telescope option is compatible with all the plates used on the GM3000 series

instead of battling the elements and mosquitos outside

The Baader Wide-T-Ring allows the connection of Canon Eos EF to T2 thread (M42)

approx 5Å FWHM

If you don't see what you need

WILLIAM OPTICS ULTRA-CAT 108 f/4.8 REFRACTOR Colour:BLACK The Double telescope option isThe William Optics UltraCat108 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