Orion 09881 Observer 70mm Altazimuth Refractor Telescope (Black) A great entry-level refractor telescope for beginners looking for a quality instrument that will provide great views of the night sky 70mm (2.75 inch) aperture lens collects enough light from the night sky for wonderful views of the Moon, bright planets like Mars, Saturn, and Jupiter, and the brightest nebulas and star clusters The Observer 70 AZ's altazimuth telescope mount provides smooth up/down and left/right panning motion across the sky, and the adjustable-height tripod helps make your viewing sessions comfortable Includes two Explorer II 1.25 inch eyepieces (25mm, and 10mm focal lengths) for viewing at 28x or 70x magnification through the telescope, an EZ Finder II reflex sight for easy aiming, and a 90-degree mirror diagonal for crisp and clear night sky views Can also be used for pleasing daytime terrestrial views of wildlife and scenery with a correct-image diagonal (sold separately)