Vixen ED115S 115mm Diameter Refractor Telescope Optical Tube with Dual Speed.
What's Included With This Item:
- 125mm tube rings, carry handle and dovetail tube plate.
The ED "S" apochromatic refractor features Extra-Low Dispersion (ED) glass in its objective lens to suppress chromatic aberration to a virtually invisible level. Coupled with a medium f/7.7 focal ratio, the ED "S" series provide a sharp, color-free image of high contrast for both visual and photographic applications. <
Works great with any Vixen equatorial mount.
|Optical tube||115mm Apertuure|
|Focal Length / F#||890mm f/7.7|
|Optical Tube Length||37" long, (940mm),|
|Optical Tube Weight||9.7 lbs. / 4.4 kg.|