Explore Scientific AR127 Air-Spaced Doublet Refractor Telescope
$449.99
A Classic 5-Inch Achromat for Star Parties and Outreach
This classic crown-and-flint achromatic refractor delivers superior optical performance in a compact, fast f/6.5 focal ratio, offering sharp images at a fraction of the cost of comparable apochromatic refractors.
A 127mm air-spaced doublet lens pulls in plenty of light for lunar, planetary, and double-star observation, and the fast focal ratio keeps the tube compact and easy to handle.
Built for public star parties and educational outreach, the optical tube arrives with a hybrid finder scope base, an 8x50 straight-through finderscope, and a cradle ring assembly with a Vixen-style dovetail compatible with alt-azimuth or equatorial mounts.
Key Features
- 127mm Air-Spaced Doublet - crown-and-flint achromatic design for sharp, high-contrast views
- Fast f/6.5 Focal Ratio - compact tube length for a large-aperture achromat
- 2-Inch Dual-Speed Focuser - smooth, precise focus control for visual and imaging use
- 99% Dielectric Diagonal - one-piece 2-inch diagonal for bright, high-contrast views
- Hybrid Finder Scope Base - 8x50 straight-through finderscope for quick target acquisition
- Vixen-Style Dovetail Cradle - compatible with alt-azimuth or equatorial mounts
| Specifications | |
|---|---|
| Optical Design | Air-Spaced Crown-and-Flint Doublet (Achromatic Refractor) |
| Aperture | 127mm (5 inches) |
| Focal Length | 826mm |
| Focal Ratio | f/6.5 |
| Limiting Magnitude | 13 |
| Resolution | 0.9 arcsec |
| Tube Length (with dew shield) | 34 in / 863mm |
| Mount Type | Cradle Ring with Vixen-Style Dovetail (OTA Only) |
| Included Accessories | 8x50 Finderscope, 2-Inch Diagonal, Mounting Rings, Finder Base |
| Model / SKU | DAR127065-02 |
| Weight | 15.6 lbs |
| Warranty | Limited warranty, activated with registration within 60 days of purchase |
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