Apochromatical Refractors, 3-lens / 4-lens, opt. Tube:

Astrophysics Starfire 152 f9 triplet Apo With Rings, 3“ dovetail, 2.5“ Focuser , case , AP reducer, AP Barlow, AP Flattner, superb Optics, all mint condition., made in the year 1991

APM-LZOS triplet SuperED 130 mm f/1200 mm APO, used

TS-Optics 61EDPH II 6-Element Flatfield APO 61mm F/4,5, used, like new