Docter 1.25" & 2" 84-deg Ultra Wide Angle UWA Eyepiece - 12.5mm Wide 84-degree apparent field of view (AFOV) Long eye relief of 18 mm to enable comfortable viewing distance Anastigmatic design provides tack-sharp views to edge of field Narrow 55 mm barrel width to allow use in binoviewers Fits 1.25 and 2 focusers and star diagonals