8 • Assembling Your Celestron C5 Spotting Scope
Figure 1-4
The C5 spotting scope attaches to a photographic tripod via the photo adapter on the
bottom of the tube.
Following is pertinent technical information for the Celestron C5 spotting scope
that you may find useful.
• Hand figured diffraction limited optical system
• 5" aperture (125mm) f/10
• Focal length — 1250mm (50")
• Schmidt-Cassegrain optical system
Resolution 0.9 arc sec.
• Tube — 11" long
• Weight (with mount) — 6 pounds
• 8x20 finder
• Highest useful magnification — 300x
• Lowest useful magnification — 23x
• Limiting magnitude (visual) — 13
• Near Focus — Approximately 20'
• Angular field of view with standard eyepiece: 1.04°
• Angular field of view using optional Reducer/Corrector lens: 1.7°
• Spun aluminum lens cover
• Starbright coatings standard — AR coating on corrector yield greater light
transmission while HR coatings on primary and secondary mirrors provide
greater reflectivity.
Technical Specifications
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