A good choice as either a supplementary eyepiece in combination with a HDF eyepiece or as a single eyepiece for the more value conscious user requiring long eyerelief.
Opticron Product Code: 40931
Specification:
Eyerelief = 17mm
Eyelens diameter = 21mm
Length = 39mm
Weight = 92g
Compatible with:
HR 80 GA Telescope: Magnification = 41xWA; Field/1000m = 30
HR 66 GA Telescope: Magnification = 30xWA; Field/1000m = 40
ES 100 GA Telescope: Magnification = 46xWA; Field/1000m = 25
ES 80 GA Telescope: Magnification = 34xWA; Field/1000m = 33
GS 815 GA Telescope: Magnification = 34xWA; Field/1000m = 33
GS 665 GA Telescope: Magnification = 27xWA; Field/1000m = 39
GS 52 GA Telescope: Magnification = 20xWA; Field/1000m = 59
IS 70 Telescope: Magnification = 27xWA; Field/1000m = 41 (40925 eyepiece adapter required)
IS 60 Telescope: Magnification = 25xWA; Field/1000m = 47 (40925 eyepiece adapter required)
IS 50 Telescope: Magnification = 21xWA; Field/1000m = 55 (40925 eyepiece adapter required)
MM2 52 Telescope: Magnification = 20xWA; Field/1000m = 58
