The Arcturus UltraWide Series of eyepieces, with their panoramic 80° fields, offer exquisite wide-angle images at low-to-medium powers, ideal for star fields, galaxies, and other deep-space phenomena. Focal lengths with 1.25" barrels yield extremely high-resolution, high-power lunar and planetary images when combined with a barlow lens.

  The 2 inch models yield outstanding views of deep sky objects displaying huge true fields of view.

Size: 2"
 

Focal length: 20mm
 

AFVO: 80 degree ultra wide angle
 
7 ELEMENTS / 4 GROUPS
 
SUPERIOR OPTICS
Ultra wide angle 80 degrees, high quality fully multicoated glass. Super sharp, high contrast & excellent aberration correction, extremely high resolution. Fold-down rubber eyecups, filter threads, blackened lens edges, anti-reflection threads for maximum contrast, upper barrels are black anodized aluminum with a rubber grip ring.