Description
The A81M is the perfect telescope for demanding astro novices who value high quality optics and workmanship "Made in Japan" and do not want to make any compromises
- Ideal entry-level telescope for demanding observers
- Portable and easy to use
- Provides impressive views of the moon and planets
- 134x more light sensitive than the human eye
- High-quality workmanship, made in Japan
- Large focuser with toothed rack and 2-inch connection
- Pure-colour, high-contrast images
- Fully coated lens surfaces
- Dimensions: 90 mm x 890 mm
- Weight: 3.5 kg
A81M refractor
A standard refractor for a variety of purposes using an achromatic lens.
The A81M is the perfect entry-level telescope for demanding beginner observers.
It is transportable, lightweight and easy to use.
The A81M is an achromatic refractor with 81 mm objective lenses.
It has a focal length of 910 mm with an aperture ratio of 1:11.2.
The long aperture ratio produces pure-coloured, high-contrast images for an achromat.
It is 134x more light sensitive than the human eye and offers a completely new perspective of the night sky.
With this telescope, you can obtain impressive views of the moon, planets and bright deep-sky objects.
Weighing less than 3 kg and at less than 1 metre long, the telescope is quick to assemble. It is also very portable and easy to use, including for children.
The telescope is built according to stringent Japanese quality standards and high-quality workmanship.
The large focuser, which is also used on our large SD refractors, allows you to attach heavy cameras without the telescope moving.
The telescope also comes with a folding mirror for making observations in unfavourable conditions, as well as a T2 thread for connecting a DSLR camera.
FEATURES
It is transportable, lightweight and easy to use.
The A81M is an achromatic refractor with 81 mm objective lenses.
It has a focal length of 910 mm with an aperture ratio of 1:11.2.
The long aperture ratio produces pure-coloured, high-contrast images for an achromat.
It is 134x more light sensitive than the human eye and offers a completely new perspective of the night sky.
With this telescope, you can obtain impressive views of the moon, planets and bright deep-sky objects.
Weighing less than 3 kg and at less than 1 metre long, the telescope is quick to assemble. It is also very portable and easy to use, including for children.
The telescope is built according to stringent Japanese quality standards and high-quality workmanship.
The large focuser, which is also used on our large SD refractors, allows you to attach heavy cameras without the telescope moving.
The telescope also comes with a folding mirror for making observations in unfavourable conditions, as well as a T2 thread for connecting a DSLR camera.
FEATURES
- Achromatic refractor
- Lens aperture: 81 mm
- Light-gathering power: from 134x
- Resolution and limiting magnitude: 1.43, 11.3 mag
- Aperture ratio 1:11.2
- Focal length: 910 mm
- Weight with accessories: 3.5 kg
- Dimensions: 90 mm x 890 mm
- Made in Japan
- A81M achromatic refractor
- Tube clamps
- Carry handle
- Dovetail bar
- Red dot finder
- Folding mirror
Technical Data
| FIELD OF APPLICATION | |
|---|---|
| Field of application |
|
| FOCUS GROUP | |
| Focus Group |
|
| PRODUCT FAMILY | |
| Product Family | Refractor telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Achromatic Refractor |
| Maximum recommended magnification | 160 |
| Mirror/Lens diam. | 81 mm |
| Focal length | 910 mm |
| Aperture ratio | 11.2 |
| Angular resolution | 1.43 arc seconds |
| Visual limiting magnitude (approx., mag) | 11.3 |
| Type of coating | Multi coated |
| Colour of coating | blue |
| GENERAL TECHNICAL DATA | |
| Material OTA | Aluminium |
| Transportability | good |
| Colour | white |
| Dust protection caps | Dust protection caps for front lens and eyepiece holder |
| DIMENSIONS & WEIGHTS | |
| Net weight OTA (incl. accessories) | 3.5 kg |
| Tube diameter | 90 mm |
| Tube length | 890 mm |
