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Celestron C90 User Manual

Celestron C90
16 pages
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Celestron C90 Specifications

General IconGeneral
Optical DesignMaksutov-Cassegrain
Focal Length1250 mm
Focal Ratiof/13.9
Aperture90 mm
Eyepiece Barrel Diameter1.25"
Mount TypeNot included (OTA only)

Summary

Introduction

How to Use this Manual

Explains the manual's structure for spotting scope setup and operation.

A Word of Caution!

Provides critical safety warnings to prevent eye damage and equipment damage.

WARNING

GETTING STARTED

Photographic Tripod

Step-by-step instructions for attaching the spotting scope to a photographic tripod.

Attaching the Standard Accessories

Using Your C90 Visually

Aligning the Finderscope

Using Your C90 Photographically

Attaching a Camera

Steps to attach a camera body to the spotting scope for photographic use.

Attaching a Video Camera

Visual Observing Information

Photography Hints

Astronomy with Your Spotting Scope

Observing the Sun Safely

Safe procedures for observing the Sun, emphasizing solar filters and finderscope protection.

Photographing the Moon

Optics Care and Cleaning

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