The AC 90/660 optic is a classic, two-lens achromat with air gap, as developed by Joseph von Fraunhofer. Thanks to its aperture ratio of f/7.3, it can be used not only for observing the Moon and planets, but also many star clusters, nebulae and galaxies.
When equipped with an optional Amici prism, the versatile telescope can also be used for observing terrestrial objects such as birds and other animals.
Children will also be able to operate this telescope since it is very simple and a pleasure to use.
The highlights at a glance:
- Portable and compact tube
- Very easy to operate
Ideal No Fuss, Grab-and-Go Telescope Mounting for Easy Visual Astronomy as well as Daytime Terrestrial Observations!!
The Sky-Watcher AZ PRONTO is a lightweight, highly portable Alt-Azimuth mount constructed from cast aluminium, designed to attach small telescopes up to 3kg in weight, fitted with a 45mm dovetail bar.
The aluminium telescopic tripod legs can be extended and clamped in any position using the integral leg locks.
Supplied with two flexible slow-motion cables, one for vertical and one for horizontal smooth fine motion control. The slow motion cables can be positioned in a choice of two different positions on each axis, making it convenient to control both refractor and reflector telescopes.
The mount can also be moved around each axis manually, for rapid panning and elevation adjustments. Accurately tracks distant moving objects with ease. This delightfully convenient and well engineered grab-and-go mounting is suitable for both terrestrial observations and astronomical viewing.
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.