Sky-Watcher EvoStar 150ED APO Refractor Telescope OTA (S11190) Mounting Plate The Ultima Edge 18mm has

The Ultima Edge 18mm has a generous 65° field of view perfect for viewing planets

20") Diopter Adjustment Range: ±3 Twilight Factor: 18

and 2-inch diagonal

5nm bandwidth of light centered on a wavelength of 500nm through

Contains dual-size holes for carrying other types of eyepieces too

Sky-Watcher EvoStar 150ED APO Refractor Telescope OTA (S11190) Mounting Plate The Ultima Edge 18mm hasSky Watcher's Evostar apochromatic doublet refractors are the perfect blend of superior extra low dispersion glass and affordability. The Evostar refractor lens assembly utilizes a proprietary combination of matched lenses, delivering tack sharp stars with charcoal black, contrast rich skies. All ED glass elements are fluorite based and feature our proprietary Metallic High Transmission Coatings (MHTC), virtually eliminating all false color while dual