70mm Aperture Refractive Telescope for Adults and Children Portable Telescope for Beginners in Astronomy Travel Telescope
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Brand Name: NoEnName_Null
Magnification: /
Objective Lens Diameter: /
Eyepiece diameter: /
Field of View: /
Type: Monocular
High-concerned chemical: None
Water Resistance Level: IPX4
Origin: Mainland China
Lens Coating Description: FMC
Material: Plastic
70mm Aperture Refractive Telescope for Adults and Children Portable Telescope for Beginners in Astronomy Travel Telescope
Product parameters
Optical System: Refractive
Linear field of view: 61ft (19m)
Caliber: 70mm
Optical coating: anti reflective film
Focal length: 300mm
Barov magnifying glass: 3X/1.5X
Jiaobi: F5.7
Exit pupil diameter: 2.2mm
Eyepiece 1:20mm
Resolution:<= four
Magnification: 15x
Distortion: 4.9%
Eyepiece 2: 6mm
Concentrating power: 73.5X
Magnification: 50x
Perspective: 1.30 degrees
Star seeking mirror: 5x24
Tracking System: Platform Equator
Zenith mirror: 48 ° positive zenith mirror
Tripod: Aluminum alloy tripod 46.5-56.5cm
Combination 1.5X doubling: 22.5x/75x
Combination 3X doubling: 45x/150x
