Celestron Ultima ED Refractor 100ED Spotting Scope

Product Description

Celestron's Ultima 100 ED spotting scope offers 50% brighter images than the 80mm, allowing for better performance in low light conditions. Like the Ultima 80ED, the 100 mm version is a high performance model that features cutting edge optics with extra low dispersion glass (ED). ED glass provides excellent colour correction & razor sharp images for serious nature & bird watchers.

ED version models are also ideal for virtually eliminating chromatic aberration usually seen during planetary & lunar viewing. Day or night, this scope is optimized to provide the sharpest images available. Model also features charcoal color rubber textured paint for secure grip.

Quick Overview:

- 100 mm ED Refractor
- Extra-Low dispersion glass provides razor sharp images
- Multi-Coated optics
- 45deg viewing angle
- 22-66x zoom eyepiece
- Sight tube for quick targeting
- Waterproof
- Rubber coated texture for comfortable grip
- Soft carrying case
- Limited Lifetime Warranty

Specifications:

Aperture (mm) 100 mm (3.94 in)
Focal Length 540 mm (21 in)
Focal Ratio 5.4
Angle 45 deg
Eyepiece 1 8-24 Zoom
Magnification 1 22-66x
Finderscope Sighting tube
Other Equipment Tripod Balancing Platform
Carrying Case Soft Case
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 deg
Linear Field of View (@1000 yds) 95ft @ 22x 53ft @ 66x
Eye Relief 18 mm @ 22x
Close Focus 33ft @ 22x
Optical Coatings Multi-Coated
Optical Tube Length 19 in (483 mm)
Weight (oz) 72 oz (2041 g)
Camera Adaptable Built-in T-thread on Eyepiece
Tripod Adaptable Yes