"Sky-Watcher Flextube 200P Collapsible 8"" DOB - Join the Ranks of Serious Observers ...Corresponding to the escalating ""aperture fever"" that has gripped amateur astronomy for several decades, an 8"" diameter is now generally regarded as the minimum entry-level aperture for serious observing.The low cost, large diameter, and fast focal ratio of the 8"" Sky-Watcher Dobsonian make it an ideal dedicated telescope for wide-field, deep-space observation of faint galaxies, nebulae, and star clusters.The low-power dramatically captures wide swaths of sky in a single view. Galaxies and nebula appear to pop out of the heavens as bright, expansive masses of stars, gas, and dust.Observing with the 8"" Sky-Watcher DobsonianIf you have never before observed through a high-quality, wide-field Dobsonian, like the SW 8"" DOB, you are in for one of the sweetest experiences in amateur astronomy. Imagine the exhilaration of opening a clam and discovering a pearl.The sky is full of pearls, astronomical pearls. While they won't make you rich in the financial sense, for amateur astronomers at least, observing the fabled pearls of deep-space is a rich and even exhilarating pastime. A catharsis for the soul that renders the mundane insignificant, and reconnects us with the inner child who revels in awe and wonderment.A night observing with the SW 8"" Dob can leave you with a lingering sense of contentm ent long after the evening's viewing is over. Some of|Newtonian (Parabolic) Optical Design|Grade A annealed Glass Lens Material|200mm Aperture (Diameter)|1200mm Focal Length|f/6 Focal-Ratio|47mm Secondary Mirror Diameter|406x Highest Practical Power|14.2 Faintest Stellar Magnitude|.96 arc sec Resolving Power|8x50 RA Viewfinder Finderscope|2"" Focuser Diameter with 1.25"" Adapter|Internal Diagonal|25mm and 10mm 1.25"" Plossl Eyepieces|Dobsonian Mount Type|Manual Slow-Motion Control with Tension Adjustments|Standard Accessory Tray|11.5Kgs Ground Board Weight(s)"