The Vixen ED103S is an apochromatic refractor, with fantastic contrast and a 4" aperture, sufficient for viewing most of the planets and many stars. With its ED glass elements, chromatic aberration has been reduced to nearly undetectable levels, permitting a much more practical use of the higher magnifications quoted in the specifications. Vixenï¾’s ED Glass has brought refractors back to the forefront of premium telescope choices, to compete with the 8" and larger ubiquitous Schmidt-Cassegrains that bring in enormous quantities of light but simply cannot compare to the contrast of the apochromatic refractor.The included flip-mirror adapter allows either 90ï¾° or straight-through observing. With an eyepiece upon each end of the flip-mirror, you can quickly switch between the two as the declination of your object of interest changes its location in the sky
The GPD2 equatorial mount is the stronger and heftier of the GP mounts.
