CELESTRON OMNI EYEPIECE 1.25" 9mm Wedge It is compatible with the

It is compatible with the Ascom drivers but also allows to guide with the ST4 protocol

The Dark series has an extended spectral range of 390 - 1000nm

Unlike low cost roof prisms

This aberration is more visible with short focal ratio Newtonians but it can be corrected with a coma corrector

4nm) is >90% and H-beta (486

CELESTRON OMNI EYEPIECE 1.25" 9mm Wedge It is compatible with theThe Celestron Omni 9mm 1. 25" eyepiece is a quality 4 element Plossl at an incredibly affordable price. Celestron Omni series eyepieces offer a 50 apparent field of view, perfect for the Moon, planets, and a plethora of deep sky objects. The premium four element optical set is finished with multiple layers of high transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast. The Omni eyepiece body is made