Vixen 81mm Super-ED Apochromatic Refractor Telescope Tube – Ultra-Sharp, Color-Free Views for Astrophotography & Stargazing (ES26083-SO)
Vixen
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- Price: $1,382.99 USD
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A Compact, High-Performance Apochromatic Refractor for Travel and Astrophotography
The SD81S II is an 81mm Super-ED apochromatic refractor — a compact, lightweight optical tube that punches well above its size. The Super-ED glass virtually eliminates color fringing and delivers sharp, true-color images with excellent contrast, and the fast 625mm focal length (f/7.7) gives wide, bright views suited for everything from large nebulae to detailed lunar and planetary work.
At just 3.6kg and 585mm long, it's one of the most portable high-performance refractors in Vixen's lineup. The tube comes fully equipped and ready to mount on a compatible equatorial or alt-az mount.
What You Can See and Image
- Deep-sky objects: nebulae, galaxies, and star clusters
- Sharp planetary detail and high-contrast lunar views
- Wide star fields with crisp, color-accurate stars
What's Included
- SD81S II 81mm apochromatic refractor optical tube
- Flip-mirror diagonal
- Red-dot finder
- Dovetail plate and tube rings with carry handle
Key Features
- 81mm Super-ED (SD) glass APO — virtually no color fringing, sharp and high-contrast
- 625mm focal length (f/7.7) — wide, bright views for deep-sky and planetary use
- Compact at 585mm length and 3.6kg — easy to transport and mount
- Flip-mirror diagonal — switch easily between eyepieces or between visual and camera use
- Supports 2" eyepieces (1.25" adapter included) and T-ring camera mounts
Specs
| SKU | ES26083-SO |
| Optical design | Super-ED apochromat (multicoated) |
| Aperture | 81mm |
| Focal length | 625mm (f/7.7) |
| Resolving power | 1.43 arcsec |
| Limiting magnitude | 11.3 |
| Light-gathering power | ~134× naked eye |
| Tube dimensions | 90mm diameter × 585mm length |
| Weight | 3.6 kg (tube 2.3 kg) |
| Focuser | Rack-and-pinion with lock knob |
| Eyepiece | 2" with 1.25" adapter |
| Finder | Red-dot |

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