The preferred choice for image quality and viewing comfort, HDF eyepieces have large diameter eye lenses and provide 'walk-in' field of vision. All eyepieces feature long eyerelief for full field of view with or without spectacles. This eyepiece has a twist-type eyecup.
Opticron Product Code: 40810
Specification:
Eyerelief = 22mm
Eyelens diameter = 25mm
Length = 40mm
Weight = 151g
Compatible with:
HR 80 GA Telescope: Magnification = 27xWW; Field/1000m = 39
HR 66 GA Telescope: Magnification = 20xWW; Field/1000m = 52
ES 100 GA Telescope: Magnification = 30xWW; Field/1000m = 33
ES 80 GA Telescope: Magnification = 23xWW; Field/1000m = 45
GS 815 GA Telescope: Magnification = 23xWW; Field/1000m = 43
GS 665 GA Telescope: Magnification = 18xWW; Field/1000m = 50
GS 52 GA Telescope: Magnification = 13xWW; Field/1000m = 75
IS 70 Telescope: Magnification = 18xWW; Field/1000m = 45 (40925 eyepiece adapter required)
IS 60 Telescope: Magnification = 17xWW; Field/1000m = 64 (40925 eyepiece adapter required)
IS 50 Telescope: Magnification = 14xWW; Field/1000m = 77 (40925 eyepiece adapter required)
MM2 52 Telescope: Magnification = 13xWW; Field/1000m = 60
