Meade Light - Bridge 16"/406.4mm Reflector Telescope, 1829mm f/4.5 Dobsonian Reflector, Red Dot View Finder, Silky Smooth Tracking, Manual Altazimuth Mount, Metal Open Truss Design, Auto - Star Suite Astronomical Software, Meade 26mm QX Wide Angle Eyepiece, 2" Crayford Style Focuser, 1.25" Adapter, The Light - Bridge 16/406.4mm Reflector Telescope from Meade is a Dobsonian design that gathers lots of light in a package that is supremely portable. - The 16.0 Lightbridge advantages don't stop with its highly travelable design. Optics are truly diffraction limited with aluminum coatings and a magnesium fluoride overcoat. The broad 2.00 focuser has a tensioning knob and lock designed to give you complete control. And the 16.0 Lightbridge is highly durable making the ultimate scope for those whom desire great brightness on the go. - This is the Deluxe version of the 16 Lightbridge telescope which adds 4 options (with variable illumination) for the Red Dot finder scope and steel roller bearings for the mount's RA axis., 1645-05-03