Skywatcher ESPRIT 150EDX TRIPLET APO REFRACTOR - ALLOW 48-72 hours to be dispatchedALLOW 48 72 hours to be dispatched The Sky Watcher 150mm Esprit 150EDX Triplet APO Refractor is a professional instrument for the most demanding and exacting astro photographers. The air spaced apochromatic triplet lenses use the remarkable Ohara FPL 53 ED (extra low dispersion) glass, with exceptional colour correction over the entire visible spectrum there is no chromatic aberration even on bright objects! Knife edge baffles reduce internal