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102 mm Wide View

$272.95

Item #: 52270

Description

Specifications

General
Aperture: 102mm (4.02")
Focal Length: 500mm (20")
Focal Ratio: f/4.9
Angle: 45°
Focal Length of Eyepiece 1: 25mm (0.98")
Magnification of Eyepiece 1: 20x
Focal Length of Eyepiece 2: 10mm (0.39")
Magnification of Eyepiece 2: 50x
Finderscope: 8X20 Erect image
Highest Useful Magnification: 241x
Lowest Useful Magnification: 15x
Limiting Stellar Magnitude: 12.5
Resolution (Rayleigh): 1.37 arc seconds
Resolution (Dawes): 1.14 arc seconds
Light Gathering Power (Compared to human eye): 212x
Apparent Field of View: 2.5°
Linear Field of View (@1000 yds): 131 ft (40 m)
Eye Relief: 22mm (0.87")
Close Focus: 15 ft (4.57 m)
Optical Coatings: Fully Multi-Coated
Optical Tube Length: 533mm (21")
Weight: 80 oz (2268 g)
Camera Adaptable: Built-in T-thread on focuser

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