Sky-Watcher Evostar 90/660 AZ Pronto Alt-Az Refractor Telescope

Easy, No-Fuss, Grab-and-Go Observing

The Sky-Watcher Evostar 90/660 AZ Pronto is a classic achromatic refractor designed for simplicity, versatility, and reliable performance. With a 90 mm objective and f/7.3 focal ratio, it delivers crisp lunar and planetary views while remaining capable on brighter deep-sky objects. Lightweight and quick to set up, it’s an excellent choice for beginners—and a convenient grab-and-go option for experienced observers.

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Clear, Versatile Refractor Optics

The Evostar 90/660 uses a two-element, air-spaced achromatic objective to provide sharp, contrast-rich images with minimal maintenance. The 90 mm aperture gathers 65% more light than a 70 mm telescope, revealing finer detail on the Moon and planets and brighter views of star clusters and nebulae.

• Objective lens: 90 mm

• Focal length: 660 mm (f/7.3)

• Multi-coated objective for improved light transmission

With an optional erect-image diagonal (sold separately), the telescope can also be used for terrestrial observing, delivering upright, correctly oriented views.

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AZ Pronto Alt-Az Mount – Simple & Stable

The included AZ Pronto alt-azimuth mount is engineered for smooth, intuitive control. Slow-motion cables on both axes allow precise tracking of celestial objects without motors or complex alignment routines.

• 360° azimuth rotation

• Altitude range: −70° to +90°

• Smooth slow-motion controls on both axes

• Aluminium tripod with accessory tray for added stability

This straightforward design makes observing relaxed and accessible—ideal for learning the night sky.

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What You Can See

• Moon: crisp craters, mountain ranges, and rilles

• Planets: Jupiter’s cloud bands and moons, Saturn’s rings, phases of Venus

• Deep sky: brighter clusters, nebulae, and galaxies under dark skies

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Magnification & Performance

• Supplied magnifications: ×33 (20 mm) and ×66 (10 mm)

• Highest practical power: ×180

• Light-gathering: 65% more than 70 mm refractors

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Included Accessories

• 10 mm & 20 mm Photo/Visual eyepieces (1.25")

• 90° 1.25" diagonal mirror

• Red dot finder for easy object location

• AZ Pronto alt-azimuth mount

• Aluminium tripod with accessory tray

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Why Choose the Evostar 90/660 AZ Pronto?

• Quick setup—no alignment or power required

• Excellent balance of aperture, portability, and ease of use

• Suitable for beginners and experienced observers alike

• Adaptable for astronomy and terrestrial viewing

A dependable, fuss-free refractor, the Sky-Watcher Evostar 90/660 AZ Pronto makes it easy to step outside and start observing—any night, any time.