The Vixen ED103S is an apochromatic refractor, with fantastic contrast and a 4" aperture, sufficient for viewing 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.   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 bring in enormous quantities of light but simply cannot compare to the contrast of the apochromatic refractor. The flip-mirror adapter 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 GPD2 equatorial mount is the stronger and heftier of the GP mounts. It is easy to use and functions well for both the visual observer and astrophotographyWith it’s solid steel R. A. and Declination axes and brass worm gears this mount will hold up to years of heavy use. In order to assure accurate tracking for astrophotography the worm, gears are especially machined to a very high precision that minimizes periodic error.

The DD3 Motor Drive Set includes DD-3 controller, two MT-1WT motors and a battery box.

• Drive Speed: Sidereal rate, 1.5x, 2x, and 32x, pause and reverse motions
• Electricity Consumption: 0.8ampere (max)
• Voltage: DC 7.5 to 12 volts
• Batteries: 8 x D Batteries (Not Included)
• Continuous Operation Duration: About 20 hours with Alkaline Batteries
• Operation Temperature: 14° to 122°
• Applicable Mounts: GP2, GPD2, GP, GP=DX, GP-E