Celestron SS80 User Manual

Focusing
The focusing mechanism is the same photographically and visually.
However, due to the high magnification, the micro prism focuser in
your camera may "black out." If this is the case, you will have to use
the ground glass portion of your focusing screen, which itself may be
dark. For the best results, take your time. Look at your subject
carefully to make sure that you have the sharpest possible focus. To
achieve a very sharp focus, consider using a focusing magnifier. These
devices are readily available from your local camera store.
If you can not get a sharp focus, check to see if your subject is closer
than the near focus distance listed in the 'Techrdcal Specification"
section.
Filters
Often it is desirable to use filters to increase photographic contrast.
Celestron offers a set of Series V drop-in filters. The set consists of six
ring-mounted glass filters that drop into the rear cell of the C90. The
T-Adapter, which threads over the filter, holds it in place. The set
includes a skylight (#1A), yellow (#8), yellow-green (#11), red (#25),
blue (#80) and neutral density (#96).
Attaching a Video Camera
The C90 can be adapted to a video or Super 8 movie camera by using
the optional T-C 16mm Adapter (#93636) and the C90 T-Adapter
(#93635). To attach a video camera to the C90:
1. Remove all accessories from the C90.
2. Remove the video camera's normal lens.
3. Thread the narrow end of the T-C 16mm adapter into the video
camera.
4. Thread the wide end of the T-C 16iiun Adapter onto the T-
Adapter.
5. Thread the T-Adapter onto the C90 while holding the camera in
the horizontal position.
18 SS80/C90

Celestron SS80 Specifications

General

Brand	Celestron
Model	SS80
Category	Telescope
Language	English