William Optics NEW Super Quality 1.25" 90° Erect Prism (Upright-Correct) - D-EP90-125II 60 Degree Diagonals The internal aluminized radiant barrier

The internal aluminized radiant barrier is pure aluminum applied through a dispersion process that is accurately controlled for consistency

75 in (102 mm x 135 mm x 248 mm)

Fully collapsed w/ mount head installed: 42"

Full color 3

Includes one eyepiece

William Optics NEW Super Quality 1.25" 90° Erect Prism (Upright-Correct) - D-EP90-125II 60 Degree Diagonals The internal aluminized radiant barrierWilliam Optics NEW Super Quality 1. 25" 90 Erect Prism Upright Correct Image This William Optics 1. 25" 90 erecting prism will be a joy to be used with that nice premium refractor of yours! It will be perfect for daytime observations too, because of its Upright Correct Image. It is internally threaded and blackened to reduce stray light reflections. This 90 William Optics NEW, Super Quality, 1. 25" Erect Image Prism Star Diagonal with an Upright