The Vixen ED103S with Sphinx Mount is an apochromatic refractor, with fantastic contrast and 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 than when seemingly identical in a normal achromatic refractor. Vixen'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, while bringing in enormous quantities of light, simply cannot compare to the contrast of the apochromatic refractor. Vixen Telescope ED103 S has flip-mirror adapter that allows either 90° 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 Vixen Sphinx Equatorial Mount and Star Book controller have been intelligently engineered for high-speed automatic location of celestial objects. It is now possible to explore the beauty of the night sky with greater ease and stability. The Sphinx comes standard with built in motors and the world's first star chart go-to controller, StarBook, with a large full color LCD display. The Sphinx’s design is exceptional and the exterior styling is equally attractive.