Carrying Case; Technical Specifications - Celestron C90 Instruction Manual

3. Thread the narrow end of the T-C 16mm adapter into the video camera.
4. Thread the wide end of the T-C 16mm Adapter onto the T-Adapter.
5. Thread the T-Adapter onto the C90 while holding the camera in the horizontal position.
Due to the weight of some video cameras, you may need additional support.
Storing Your C90
To minimize the need to clean your C90, replace all lens covers after use. The spotting scope can
be left on a tripod for display purposes or returned to its shipping carton. Since the rear cell of
your C90 spotting scope is not sealed, the eyepiece or protective cover MUST be placed over the
opening in the rear cell when not in use. This will prevent contaminants from entering the optical
system.

Carrying Case

A deluxe foam fitted carrying case (#302042) is optional for both models of the C90. It is rugged
and has room for a camera body and other items.

Technical Specifications

Below is pertinent technical information on your C90 spotting scope that you
may find useful.
Optical System
Aperture:
Focal Length:
Near Focus:
with standard eyepiece:
with camera:
Useful Power Range:
Linear Field of View:
Angular Field of View:
F/ratio:
Length:
Weight:
Note: All specifications are stated for the C90 using the standard accessories. These
specifications are approximate and may change without notice.
Maksutov-Cassegrain
90mm (3.55")
1000mm (40")
5'
6'
25x to 210x
53' (79' with 1-1/4" eyepiece)
1.0° (1.5° with 1-1/4" eyepiece)
f/11
7.75"
3lb. 4oz.