Description
The classic air-spaced, crown-and-flint, doublet achromatic refractor is reborn with the aim to produce superior-class optical figure in a short (f/6.5) focal length design with Explore Scientific Air-Spaced Doublet AR Series. These optics are an extreme value, produce stunning images of deep sky objects, double stars, planets, and the moon that are a small fraction of the price of comparable aperture apochromat refractors. Finally one can own a diffraction-limited high quality refractor for a relatively modest investment.
Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series has standard hardware which includes a precision 10:1 two-speed focuser, a 2-inch diagonal, an 8×50 finder scope, and a case. You can be confident that the quality and construction of these telescopes will allow heavy use for many years and are backed with a transferrable Five Year USA Limited Warranty.
Standard Hardware:
-Removable Dew Shield
-Front and Rear Dust Covers
-Cradle Rings with Handle and Univsersal Saddle Plate
-10:1 Two-Speed Focuser 2.0″ I.D.
-8×50 Finder Scope with Six Point Adjustable Bracket
-2.0″ Mirror Diagonal with 1.25 ” Adapter
Specifications:
-Optical Design: Air-Spaced Doublet Achromatic Refractor
-Clear Aperture: 127mm
-Focal Length: 825mm
-Focal Ratio: f/6.5
-Resolving Power: 0.9 arc seconds
-Coatings: Fuly Multi-Coated
-Limiting Stellar Magnitude: 13
-Maximum Practical Visual Power: 500x
-Lowest Useful Visual Power: 14.5x
-Tube Diameter: 5.13″ – 130.4mm
-Tube Length: 34″ – 863.6mm
-Tube Construction: Aluminum; Stainless Steel
-Optical Tube Assembly Weight (with all standard accessories): 15 lbs – 6.8
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