William Optics 1.25" SWAN Eyepiece 20mm
SWAN: a premium eyepiece for your most demanding observations.
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!
Internally baffled, all lenses' edges and internal spacers blackaned, fully multicoated!
Model: SWAN 20
Focal Legth: 20mm
Lens Structure: 5 Elements / 4 Groups
Field of view: 72 degree
Eye Relief: 17mm