Orion’s SkyQuest XX16g GoTo Truss Tube Dobsonian Telescope has an f/4.4 focal ratio. It comes with a 2″ dual-speed Crayford focuser, 28mm and 12.5mm eyepieces, and a 42,000-object database.

The XX12 is Orion’s first Dobsonian style telescope with an open truss-tube design. Recently, I had a chance to put the XX12 through its paces, and I must say that I came away impressed.

LA SALLE — When Randy Cunningham was 12 years old, he built his first telescope. Even at that age, he knew his future would be somewhere in the stars. He was right. Cunningham, 52, is the owner and ...