With a diameter of 90mm, this telescope offers more possibilities than basic 60mm or 70mm models. The greater stellar range and improved resolution allow you to see more objects with better image quality. This telescope has an f/10 aperture and a 900mm focal length. The tube is mounted on an EQ2 equatorial mount, which allows for convenient manual tracking of objects (an optional electric drive can also be installed). When equipped with a 1.25" prism attachment, it allows for a terrestrial, non-inverted image. The telescope's optical system is a refractor, with an equatorial mount, aperture 90mm, focal length 900mm, and total weight 8kg.