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Telescopes > Skywatcher > AZ-3 > Skywatcher Telescope AC 90/900 EvoStar AZ-3
( 5 / 5 )
Product no.: 21947

Telescope AC 90/900 EvoStar AZ-3

$ 320.00 incl. VAT, plus shipping costs
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Express shipment possible for delivery tomorrow, 02.02.2023!
This product is available in the following variants:
Type of build Price
AZ-3 $ 320.00
EQ-2 $ 389.00
EQ-3-2 $ 498.00

Product description

More about the series AZ-3...

AC 90/900 optics.
This optics is equipped with an achromatic objective. Because of a special combination of two lenses within the objective, most of the colour aberrations can be corrected. Thus, you do not have to face so many disturbing irregularities as usual with common Fraunhofer refractors. The aperture ratio of 1:10 has an additional positive effect.

The Skywatcher AZ-3 is a practical altazimuth mount, easy-to-use and providing good stability.

It can serve as a base for terrestrial or astronomical observing and support telescopes or spotting scopes up to a maximum weight of 5kg (refractors of up to 120mm aperture and reflectors of up to 150mm diameter).

The AZ-3 has horizontal quick adjustment plus a locking screw, and vertical quick adjustment with a slipper clutch. There is fine adjustment with flexible slow motions available on both axes. The tracking is absolutely smooth and sensitive adjustment and allows fine adjustment even at high magnification.

The vertical angle can be adjusted between 50 and 90 degrees, allowing viewing from the horizon up to nearly the zenith and panning 360°. The AZ-3 mount is hence equally suited for terrestrial and astronomical observing. The telescope/spotting scope is mounted via tube ring clamps.

Technical data:

  • altazimuth mount allowing 360° panning and adjustable from the horizon to almost the zenith
  • vertical rapid adjustment with slipper clutch
  • fine adjustment via flexible slow motions
  • aluminium tripod - infinitely adjustable from 70cm to 123cm
  • entire weight only approx. 3.9kg, including tripod


Included in delivery:

  • AZ-3 altazimuth mount
  • height-adjustable tripod

It is not only important which telescope you buy, but also where you buy it.

We provide extra help:

  • We are a leading telescope dealer and know these instruments like the back of our hands.
  • We are always very happy to offer our assistance after your purchase, should you encounter any problems with your telescope’s setup or operation.
  • Our ‘Telescope Basics’ booklet - an 80-page beginner's guide for our telescopes – is provided free of charge with every telescope we sell.

Our expert comment:

Tip: Optimal alignment of AZ-3 mount

The AZ-3 mount is well suited for both terrestrial and astronomical observing.

1. Terrestrial observing

For terrestrial observing, just set the telescope in the AZ-3 in a horizontal position. Slightly loosen the tube ring clamps and push the OTA slightly forwards or backwards so that the tube is balanced and does not tip forwards or backwards. Then re-tighten the clamps.

2. Astronomical observing

  • loosen you the large side screw and position the OTA pointing upwards at an angle of about 45°.
  • loosen the tube ring clamps slightly and slide the OTA forwards or backwards until optimal balance is achieved. It should not tip forwards or backwards.
  • then set the OTA in a horizontal position and tighten the locking screw so that the instrument is just prevented from tipping forwards. This ensures an optimal load distribution on the mount.

(Bernd Gährken)

Specifications

Optics


Type
Refractor
Type of build
Achromat
Aperture (mm)
90
Focal length (mm)
900
Aperture ratio (f/)
10
Resolving capacity
1,28
Limit value (mag)
11,6
Light gathering capacity
170
Max. useful magnification
180
Tube construction
Full tube
Tube weight (kg)
2,5

Focuser


Type of build
Gear rack
Connection ( to eyepiece)
1,25"

Mount


Mounting type
Azimuthal
Type of build
AZ-3
GoTo control
no
Load capacity (kg)
5

Tripod


Type
Tripod
Material
Aluminium
Max. tripod height (cm)
121
Min. tripod height (cm)
71
Accessory plate
yes

Included accessories


1.25'' eyepieces
25mm, 10mm
Finder scope
6x30
Deviating optics
Amici prism, 1.25", 45°
Slow motion cable (piece)
2

General


Total weight (kg)
11,7
Special recommendation
yes
Series
AZ-3

Area of application


Astrophotography
not recommended
Moon & Planets
yes
Nebulae & galaxies
yes
Sun
no (Only with appropriate Sun filter)
Nature Observation
yes

Recommended for


Beginners
yes
Advanced
no
Observatories
no

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*All prices include VAT plus shipping costs.

Skywatcher Telescope AC 90/900 EvoStar AZ-3
Skywatcher Telescope AC 90/900 EvoStar AZ-3

Customer reviews

Perfect Start

Review by N. T. on 25.10.2021 14:24:40

( 5 / 5 )

I bought this telescope on the recommendation from the staff of this site and it was a very nice surprise. I am just starting in stargazing and it was amazing to be able to see Jupiter and Saturn within about 2 minutes of setup.

Quality is good and it's very easy to use.
I will definitely upgrade the eyepieces in the future to get that little bit extra.

I would recommend this telescope.

Probably best telescope for beginners

Review by G. M. on 17.02.2015 09:44:06

( 5 / 5 )

This telescope has a very very clear view, it's perfect for both terrestrial and astronomical observation. It's also very easy to manipulate so it fits best for beginner astronomers. Materials are of excellent quality, given eyepieces are also very good. Easy to set up. a great all-around scope.

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