Meade Infinity 102mm Altazimuth Refractor Telescope Great for Astronomy Style name:102mm AZ Refractor   Ideal for the observer who views both astronomical and terrestrial objects, the Meade Infinity Series combines an altazimuth mount and quality optics for a superb value. For newcomers and beginners alike, these refracting telescopes are a great way for you to discover the cosmos and the outdoors. You’ll discover more with the Meade Infinity Series. If you’ve never owned a telescope before, the Infinity 102 Refractor is the best telescope to get started in astronomy. This large 102mm (4.0") aperture gives bright, sharp images for both land and celestial objects. Whether you're viewing the rings of Saturn, the moons around Jupiter, nebulae, or land objects, the Infinity 102 Refractor allows the first-time observer to explore the world, solar system, and beyond. Pros: Right-side up image means you can use it for daytime observing (birds, hunting, ocean, etc) Large aperture size lets you see more Easy assembly Refractor means you don’t have mirrors to align (collimate); it’s ready to go out of the box Cons:  Tracking celestial objects is less easy than an EQ mount because the controls function left, right, up, down whereas EQ mounts turn with the rotation of the Earth Q: How is this telescope different than the other Infinity models (90, 80, 70, etc)? A: The differences between each model are aperture size. The bigger the aperture, the more light-gathering power the telescope will have, resulting in brighter, detailed images. The Infinity 102 differs from other Infinity models because it has a 102mm aperture, the largest of the Infinity series. The Infinity 102 comes with a panhandle attached to the mount, allowing for easy adjustments when locating an object, while the Infinity 50, 60, and 70 do not. It also comes with 3 eyepieces, while the Infinity 60 and 70 come with two.