By Dr. James R. Dire In 2017, I picked up two new William Optics telescopes: a Twentieth Anniversary Edition Fluorostar 132 (132-mm f/7 triplet Apo) and a William Optics Zenithstar 61. In a previous article, I reviewed the Fluorostar 132. Here, I will review the William Optics Zenithstar 61. The […]