Celestron 102mm Instruction Manual - Page 8

Browse online or download pdf Instruction Manual for Telescope Celestron 102mm. Celestron 102mm 17 pages. 80mm/102mm wide view spotting scope

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Attaching a Camera

To attach a camera to your Wide View Spotter:

1. Remove all visual accessories.

2. Thread the proper T-Ring onto the built-in T-Adapter threads at the end of the eyepiece

holder.

3. Mount your camera body onto the T-Ring the same as you would any other lens.

Focusing The Camera

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 "Technical Specification" section.

Storing Your Wide View Spotting Scope

To minimize the need to clean your spotting scope, 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 Wide View 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.

Technical Specifications

Below is pertinent technical information on your Wide View spotting scope that

you may find useful.

Optical System

Aperture:

Focal Length:

Near Focus: with low power eyepiece

Useful Power Range:

Linear Field of View:

Angular Field of View:

F/ratio:

Length:

Weight:

Note: All specifications are stated for the Wide View spotting scopes using the standard

accessories. These specifications are approximate and may change without notice.

80mm Wide View

Refractor

80mm (3.15")

400mm (16")

~13'

12x to 189x

131' with 20mm Eyepiece

(53' with 10mm Eyepiece)

2.5° with 20mm Eyepiece

(1.0° with 10mm Eyepiece)

f/5

15.5"

4 lbs. 11 oz

102mm Wide View

Refractor

102mm (4")

500mm (20")

~17

15x to 240x

131' with 25mm Eyepiece

(53' with 10mm Eyepiece)

2.5° with 25mm Eyepiece

(1.0° with 10mm Eyepiece)

f/5

21"

5 lbs.