The Celestron C5 Spotting Scope offers a 5" (127mm) aperture, 1250 mm f/10 Schmidt-Cassegrain optical system. The high optical excellence is the reason NASA used this telescope for several space shuttle missions.
The Celestron C50 Mak is a compact, lightweight, waterproof spotting scope that employs a high contrast multicoated Maksutov optical design for high magnification views that are remarkably free of chromatic aberration (colour fringing around the edge of bright objects).
The 25-75x zoom eyepiece can be removed and a supplied 1.25" eyepiece adapter fitted that will accept 1.25" astronomy eyepieces.
This is one of our favourite SCT telescopes with remarkable performance-per-aperture. After Synta bought Celestron this was their first new SCT and was the model that convinced the Americans that the brand was safe in their hands!