The largest aperture scope in the Ultima line, the 100 mm Ultima offers more than 50% brighter images than the 80 mm, allowing for better performance in low light conditions. The 100 mm refractor features excellent multi-coated optics packed into a portable and durable refractor design and comes standard with a 22-66x zoom eyepiece.
This series was designed to perform well in a range of viewing situations, making it a great all-around optical instrument. You’ll love it for observing nature and long distance spotting and since it is completely waterproof you can feel comfortable using it in extreme weather. The green rubber optical tube allows for subtle observation in any nature environment. Ultima spotters are a great companion for any nature or outdoor enthusiast. Soft carrying case included.
Additional Features:
- 100 mm Refractor Spotting Scope
- Multi-Coated optics
- 45° viewing angle
- 22-66x zoom eyepiece
- Sight tube for quick targeting
- Waterproof
- Soft carrying case
- Limited Lifetime Warranty
Technical Specifications
| Magnification: |
22 - 66x |
| Objective Lens Diameter: |
100mm (3.93") |
| Eyepieces: |
8mm - 24mm (.31" - .94") |
| Angular Field of View: |
1.8° - 1.0° |
| Linear Field of View (@1000 yds) / @1000 m): |
94 ft (28.6 m) @ 22x| 52 ft (15.8 m) @ 66x |
| Focal Length: |
540mm (21.26") |
| Exit Pupil: |
4.5mm - 1.5mm (.17" - .06") |
| Eye Relief: |
18mm (.71") |
| Close Focus: |
33 ft (10 m) |
| Twilight Factor: |
82.1 - 47.4 |
| Relative Brightness: |
19.7 - 2.2 |
| Limiting Stellar Magnitude: |
Ideal: 12.50
Moderate: 11.50
Poor: 10.50 |
| Lens Coatings: |
Fully Multi-Coated |
| Prism Glass (Type): |
BaK-4 |
| Prism Coatings: |
FMC |
| Weight: |
72 oz (2041 g) |
| Environmental Protection: |
Waterproof |
| Nitrogen Filled: |
Yes |
| Tripod Adaptable: |
Yes |
| Carrying Case: |
Padded green woven nylon view-through |
| Camera Adaptable: |
Yes |
| Dimensions: |
540mm x 110mm x 180mm (21.3" x 4.3" x 7.1") |
| Included Items: |
Extend plate
Zoom eye piece with integrated T-adapter
Carrying case
Eyepiece lens cap
Eyepiece Port cover
Eyepiece carrying case
Eyepiece pouch
Lens cloth
Instrument manual |
In the Box
- Celestron Ultima 100 45 Degree Spotting Scope
- Extend plate
- Zoom eye piece with integrated T-adapter
- Carrying case
- Eyepiece lens cap
- Eyepiece Port cover
- Eyepiece carrying case
- Eyepiece pouch
- Lens cloth
- Instrument manual
Warranty & Manuals
Limited Lifetime Warranty
