Vixen A80Mf 80/910 Porta II AZ refractor telescope
The Vixen A80Mf Porta II set is a high-quality refractor telescope featuring an outstanding achromatic objective, complete with everything a beginning astronomer needs to get started. The Vixen A80Mf achromatic refractor delivers excellent colour correction, making it an ideal instrument for observing the Moon and planets. It is equally well suited for viewing bright nebulae - a tour of the Orion Nebula or the Andromeda Galaxy will be an unforgettable experience, as will detailed views of the crater-covered lunar surface.
The optical system is designed to produce bright, crisp images with high contrast and accurate colour reproduction free of distortion. The 80mm objective gathers significantly more light than smaller models, while the telescope remains easy to handle and portable enough to take to remote observing sites. Fully coated optics ensure excellent views of the Moon, planets, planetary moons and brighter deep-sky objects. The telescope also allows the splitting of double stars and observation of bright objects with minimal coma.
Porta II alt-azimuth mount
The Porta II mount is popular not only among beginners but is also appreciated by experienced observers thanks to its fast and easy setup. It features a quality build and smooth adjustment on both axes. Instead of conventional clamps, sliding couplings are used, allowing fluid repositioning as you track objects across the sky. The mount holds its set position automatically, which simplifies operation for users of all skill levels.
What is included in the set
The set includes two Plossl eyepieces (6.3mm and 20mm), covering a useful magnification range for visual observation. The Vixen A80Mf beginner telescope passes strict quality control at the factory, ensuring the 80mm optics meet the highest standards of Japanese optical manufacturing.
Included accessories
- Vixen A80Mf 80/910mm achromatic refractor OTA
- Porta II alt-azimuth mount with tripod
- Plossl eyepiece 6.3mm
- Plossl eyepiece 20mm
- 1.25″ diagonal (star diagonal)
- Red dot finder
Technical specifications
| Parameter |
Value |
| Optical design |
Achromatic refractor |
| Objective aperture |
80mm |
| Focal length |
910mm |
| Focal ratio |
f/11.4 |
| Eyepiece barrel diameter |
1.25″ |
| Magnification with 20mm eyepiece |
45x |
| Magnification with 6.3mm eyepiece |
144x |
| Maximum useful magnification |
~160x |
| Limiting stellar magnitude |
~11.4 mag |
| Angular resolution |
1.45 arcseconds |
| Optical coatings |
Fully coated (FC) |
| Focuser type |
Rack-and-pinion, 1.25″ |
| Mount type |
Alt-azimuth (Porta II) |
| Tripod |
Aluminium, included |
| OTA weight |
~1.6 kg |
| Total set weight |
~5.5 kg |
| Country of manufacture |
Japan |
Who is this telescope for?
The Vixen A80Mf on the Porta II mount is an excellent choice for beginners who are serious about astronomy from the start. The long focal ratio of f/11.4 makes it very forgiving with eyepieces and gives sharp, high-contrast planetary views with virtually no chromatic aberration. At the same time, the system is capable enough to grow with the observer - the Porta II mount is compatible with a wide range of Vixen accessories, and the OTA can be upgraded or transferred to an equatorial mount in the future.
The telescope is particularly well suited for:
- Lunar observation - craters, mountain ranges, rilles and valleys in fine detail
- Planetary observation - cloud bands on Jupiter, the rings of Saturn, phases of Venus and Mars
- Double star splitting
- Bright deep-sky objects - the Orion Nebula (M42), the Andromeda Galaxy (M31), open star clusters
- Terrestrial observation (with an additional erecting prism or diagonal)
About Vixen optics
Vixen is one of Japan's most respected telescope manufacturers, with decades of experience in producing instruments for amateur and professional astronomers alike. The A80Mf refractor is manufactured to strict tolerances and undergoes individual quality control before leaving the factory. The Porta II mount, designed and built by Vixen, is widely regarded as one of the smoothest and most practical alt-azimuth mounts available in its class, recognised by astronomy communities worldwide for its reliability and ease of use.
Specifications
Type of telescope:
Achromatic refractor
Optical scheme:
Achromat
Focal length:
910 mm
Aperture:
80 mm (3.2″)
Aperture ratio:
11.4
Resolving capacity:
1.45"
Limit value:
11.3 magnitude
Light gathering capacity:
130x
Max. useful magnification:
160x
Connection type:
1.25″
Mounting:
Azimuthal
Recommended for:
Beginner, Advanced
Application area:
Astrophotography, Deep Sky observation, Planets observation
Package contents of "Vixen A80Mf 80/910 Porta II AZ refractor telescope":
✅ Porta II mount
✅ A80Mf telescope
✅ 2 eyepieces: Plössl 20 mm and Plössl 6.3 mm
✅ 6x30 viewfinder telescope
✅ 31.7 mm star diagonal
✅ Tripod
✅ Tripod storage shelf for accessories
✅ Shafts for fine adjustment
✅ Tube clamps and dovetail adapter
✅ Dew cap
✅ Mounting tool
Typical magnifications
The recommended magnification is highlighted in yellow.
D = telescope aperture in millimeters
