العدسات العينية

Introducing SWAN (distributed by William Optics) eyepieces, for your most demanding visual observations. Features an internally baffled barrel, all lenses’ edges and internal spacers blackened, and fully multicoated. Unforgettable views of star clusters and the moon at 72 deg. F.O.V.  A premium eyepiece at a fraction of the cost it’s worth. This unit has a focal length of 20mm.