Meade Instruments Infinity 70mm AZ Refractor Telescope Aperture: 70mm(2.8"). Focal Length: 700mm. Focal Ratio: f/10. Rack-and-Pinion Focuser Altazimuth mount with a slow motion control rod for precision tracking means you can easily track objects day or night Low (26mm) and high (9mm) magnification eyepieces give you variety for any viewing situation & 2x barlow lens doubles the magnifying power of each eyepiece Red dot viewfinder helps you point your scope at objects you want to observe & accessory tray stores accessories while observing Includes Astronomical Software and Instructional DVD