Orion StarMax 90 Mak-Cass Telescope & Make It Zoom Kit This complete telescope and accessory bundle makes it easy for beginners to enjoy multiple magnifications right out of the box Long 1250mm focal length Maksutov-Cassegrain telescope with 90mm aperture provides plenty of magnification ability in a compact, tabletop package Included Orion Zooom! eyepiece has a substantial focal length range of 7.2mm to 21.5mm so you can vary the magnification without swapping out eyepieces Double your magnification options with the included Shorty 2x Barlow Lens which doubles the power of any 1.25" eyepiece it's used with The useful Beginning Stargazer's Toolkit provides helpful reference materials and Starry Night astronomy software is also included