William Optics UltraCat 56 f/4.8 WIFD Petzval APO Refractor - T-C-56BR Celestron Microscopes 72") Filter diameter (external): 145mm

72") Filter diameter (external): 145mm (5

Exit Pupil (mm): 2

The angle adjustment range is +/-1º and the adapter is marked with 5' increments to make adjustments easy

This telescope eyepieces offers owners of 1

William Optics UltraCat 56 f/4.8 WIFD Petzval APO Refractor - T-C-56BR Celestron Microscopes 72") Filter diameter (external): 145mmThe William Optics UltraCat 56 is a cutting edge 56mm f 4. 8 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, the UltraCat 56 delivers breathtaking edge to edge clarity and vivid detail without an additional flattener, making it perfect for capturing expansive celestial views. Its robust build, exceptional optics, and innovative