Tele Vue 20 mm Plossl:
Rubber grip ring for a comfortable grip in cold weather.
I had this as a standard equipment eyepiece with a TeleVue refractor.
Provides an almost 4.5mm exit pupil with an f/4.5 Dobsonian reflector for rich field scanning of the Milky Way star clouds.
Excellent choice to complement the 40mm eyepiece provided with some go-to Schmidt-Cassegrains.
Apparent Field 50 degrees
Field Stop (mm)17.1
Eye Relief (mm)14.4
Price: $60 Buyer pays shipping. Make that $55 (I don't remember where I put the eye caps)