Optical

Enhanced by the world's most advanced optical design and cutting-edge optical processing this double air-spaced ED OTA offers a versatile platform that delivers exceptional performance for both visual

SW PRO 100ED APO Refractor: When You Demand the Best!Sky-Watcher is a leader in the design and manufacturer of ED-APO systems.

Sky-Watcher Equinox Series is the high end of the affordably priced family of apochromatic refractors.

TeleVue NP127is Refractor Telescope Concept: CCD cameras have challenged telescope optics beyond anything ever placed at the focal plane.

ZenithStar 66mm SD Doublet APO Refractor OTA - White Package deal w/ 1.25-inch Dielectric Diagonal A small-aperture but extremely portable APO scope at a great price?

ZenithStar 66mm SD Doublet APO Refractor OTA - White Package deal w/ 1.25-inch Dielectric Diagonal A small-aperture but extremely portable APO scope at a great price?

The VMC200L is a unique catadioptric optical system. It incorporates a primary mirror and a meniscus corrector just before a secondary mirror. By doing so light is corrected twice on the optical path.

The remarkably fast 200 mm (8) f/4 parabolic primary mirror of the R200SS Newtonian reflector gives extremely sharp images with no chromatic aberration.

Weighing in at 14.3 lbs this 5.5 inch Vixen telescope is an incredible performer.

The newly designed high definition ED lens on the ED103S gives excellent optical performance with a short optical tube for easy handling.