Celestron Refractor 80ED - Manual (Page 14)

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• Axiom – As an extension of the Ultima line, a new wide angle series is offered – called the Axiom series.
All units are seven element designs and feature a 70º extra wide field of view (except the 50mm). All are
fully multicoated and contain all the features of the Ultimas.
Filter, Contrast-Booster 1-1/4" by Baader - (#94121)
This is our newest high quality filter that eliminates most color aberration inherent in
achromatic refractor telescopes. The filter also reduces your view of the blue hue around
lunar and planetary subjects. Features multi-layer coatings for 95% transmission.
A full description of all Celestron accessories can be found at www.celestron.com)