Explore Scientific eyepieces with 20 mm focal length and their own field of view (AFOV) equal to 62 degrees is a new, more affordable proposition for people looking for a very good eyepiece "for years". In line with high production standards that have been characterized by Explore Scientific glasses for years, the eyepiece is water-proof, filled with argon and offers a decent removal of the exit pupil equal to 15 mm.
• focal length: 20 mm
• own field of view: 62 °
• offset of the exit dust: 15 mm
• Luminaire diameter: 1.25 "/ 31.7 mm
• eyecup: rubber, with the possibility of swiveling
• water resistance: yes, filled with Ar
• weight: 135 g