Celestron Optical Tubes (OTA)
Superior edge performance not only creates rounder, more p..
Versatile design accommodates 2 focal ratios: native f/10 ..
includes: 25mm eyepiece (81x), 6x30 optical finderscope, s..
The Celestron C11 packs serious light gathering ability
Store your 11” Schmidt-Cassegrain or EdgeHD optical tube i..
Laser-Collimator for easy collimation of your telescope in..
The Celestron Cheshire Collimation Eyepiece is ideal for p..
V-Dove Tail orange anodized, 455mm, drilled for Celestron ..
Flat field free of optical aberrations like field curvatur..
Kit includes 3 spacer rings of different lengths (7.5mm, ..
Fast, wide-field 11” f/2.2 optical design with rare-earth ..
A breakthrough 36 cm aperture, f/2.2 optical system design..
11” f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) V2 uses..
Today, with CCD sensor sizes as large as film or larger,
..
This C90 Mak has excellent optics with razor-sharp images ..
Prime focus photography is popular for short exposure imag..