... wide angle,high index glasses,Fully broadband multi-coating. SWA 32mm Telescope eyepieces: Prod. Code :BGWA32Focal Length(mm) :32Lens Structure(#Element ... (mm) :24Barrel(in) 2Field stop(mm):40.0FEATURES of SWA 32mm Telescope eyepieces:Super wide angle 70 degrees, high index glasses ... with a rubber grip ring. Fully broadband multi-coating. SWA 32mm Telescope eyepieces