Sky-Watcher EVOSTAR 90/660 AZ PRONTO

Sky-Watcher EVOSTAR 90/660 AZ PRONTO: simplicity, versatility and performance

Visit Sky-Watcher EVOSTAR 90/660 AZ PRONTO is the ideal telescope for anyone looking for a simple, efficient and immediately operational instrument. Designed in the “grab-and-go” spirit, it allows you to quickly enjoy the sky without technical constraints, while offering high-quality optical performance. Whether you're a beginner or an experienced amateur astronomer, this model is a reliable and versatile solution for observing the sky and, as an option, terrestrial landscapes.

This telescope is a classic achromatic refractor with two lenses, renowned for its robustness and image quality. With an aperture of 90 mm and a focal length of 660 mm (i.e. a focal ratio of f/7.3), it offers an excellent compromise between brightness and field of view. It is perfectly suited to the observation of Moonand planets and a large number of objects from the deep sky such as star clusters and bright nebulae.

The objective lens is coated multilayer which improves light transmission and enhances image contrast. Thanks to its 90 mm diameter, the telescope captures 65% more light than a 70 mm model, The result is brighter, more detailed observations. The resulting images are sharp and well-defined, ideal for discovering the details of lunar craters or Jupiter's cloud bands.

The Sky-Watcher EVOSTAR 90/660 is supplied with two eyepieces of 10 mm and 20 mm, which can achieve magnifications of x66 and x33. Maximum useful magnification is up to x180, This is the perfect way to explore celestial objects in greater detail. Visit Red Dot viewfinder makes target aiming a breeze, making telescope use intuitive even for beginners.

This versatile instrument can also be used for terrestrial observation. By adding a rectifier angle drive (optional), The result is a perfectly corrected, straight image, ideal for daytime observation of nature or distant subjects. This dual use makes the EVOSTAR 90/660 a particularly complete telescope.

The frame AZ PRONTO Alt-Azimuth is designed for easy, fluid operation. Robust and stable, it allows precise movements thanks to its slow-motion controls on the horizontal (azimuth) and vertical (altitude) axes. It offers full rotation of 360° in azimuth and an amplitude of -70° to +90° at altitude, This makes it easy to observe all areas of the sky.

The aluminum tripod ensures good stability while remaining lightweight and easy to transport. It is equipped with a accessory tray to keep your eyepieces close at hand during your observation sessions. The set is perfectly suited to nomadic use, whether in your garden or on outings in the great outdoors.

Finally, this telescope is supplied with a universal smartphone adapter, compatible with 54 to 90 mm wide. This accessory makes it easy to capture images of the Moon, or to initiate your first experiments in astrophotography, directly with your phone.

The Sky-Watcher EVOSTAR 90/660 AZ PRONTO is therefore an excellent choice for anyone looking for a simple, high-performance and versatile telescope. Easy to set up, pleasant to use and capable of providing fine observations, it represents an ideal gateway to astronomy, while remaining relevant for more advanced users in search of a lightweight, practical instrument.

Technical specifications