Celestron Ultima 100 - Straight Refractor Spotting Scope # 52257
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Quick Overview
- Bak-4 Prisms
- Multi-Coated Optics
- Zoom Eyepiece
- Waterproof
- Sighting Tube
- Soft Carrying Case
- No-Fault Lifetime Warranty
Product Details
Celestron's highly acclaimed Ultima Series is more versatile than ever. The Ultima Series feature multi-coated optics to provide exceptional clarity and brilliance. The largest aperture scope in the Ultima line, the 100mm, provides the best performance in low light conditions.
Ultima Series spotters perform extremely well under all light conditions which makes them ideal for all types of outdoor viewing activities including bird watching, nature and wildlife, target shooting – even astronomy.
The Ultimas are as great to look at as they are to look through. Their sleek design is accented with graceful contours that make them easy to hold and handle.
The Ultima Series spotters are the perfect choice for the outdoor enthusiast looking for a spotter with quality design and construction, superior optics, and versatility at an affordable price.
Product carries full 2 year Celestron factory limited warranty (within US/Canada only).
Other Information
- Country of Manufacture: China
| Optical Design | Refractor |
|---|---|
| Aperture (mm) | 100 mm (3.94 in) |
| Focal Length (mm) | 540 mm (21 in) |
| Focal Ratio | 5.4 |
| Magnification | 22-66 x |
| Highest Useful Magnification | 236 x |
| Lowest Useful Magnification | 14 x |
| Limiting Stellar Magnitude | 12.5 |
| Resolution (Rayleigh) | 1.39 arc seconds |
| Resolution (Dawes) | 1.16 arc seconds |
| Light Gathering Power (Compared to human eye) | 204 x |
| Angular Field of View | 1.8° - 1° |
| Linear Field of View (@1000 yds) | 95ft @ 22x, 53ft @ 66x |
| Eye Relief | 18@20x |
| Near Focus | 33@22x |
| Optical Coatings | Multi-Coated |
| Optical Tube Length | 22 in (559 mm) |
| Weight (lbs) | 4.5 lbs (2.04 kg) |
| Weather Proof | Waterproof |
