Description
Optical Design: Refractor
Aperture: 80mm (3.1″)
Focal Length: 900mm (35.43″)
Focal Ratio: f/11
Focal Length of Eyepiece 1: 25mm (0.98″)
Magnification of Eyepiece 1: 36x
Focal Length of Eyepiece 2: 10mm (0.39″)
Magnification of Eyepiece 2: 90x
Barlow Lens: 2x (1.25″)
Finderscope: StarPointer™ red dot finderscope
Star Diagonal: Erect image 90° (1.25″)
Optical Tube: Aluminum
Highest Useful Magnification: 189x
Lowest Useful Magnification: 11x
Limiting Stellar Magnitude: 12
Resolution (Rayleigh): 1.74 arc seconds
Resolution (Dawes): 1.45 arc seconds
Light Gathering Power (Compared to human eye): 131x
Optical Coatings: Fully Coated glass optics
Optical Tube Length: 965mm (38″)
Optical Tube Diameter: 90mm (3.54″)
