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: 40930
Specification:
Eyerelief = 18mm
Eyelens diameter = 21mm
Length = 38mm
Weight = 83g
Compatible with:
HR 80 GA Telescope: Magnification = 31xWA; Field/1000m = 40
HR 66 GA Telescope: Magnification = 23xWA; Field/1000m = 49
ES 100 GA Telescope: Magnification = 36xWA; Field/1000m = 32
ES 80 GA Telescope: Magnification = 27xWA; Field/1000m = 41
GS 815 GA Telescope: Magnification = 27xWA; Field/1000m = 39
GS 665 GA Telescope: Magnification = 21xWA; Field/1000m = 49
GS 52 GA Telescope: Magnification = 15xWA; Field/1000m = 74
IS 70 Telescope: Magnification = 21xWA; Field/1000m = 45 (40925 eyepiece adapter required)
IS 60 Telescope: Magnification = 20xWA; Field/1000m = 58 (40925 eyepiece adapter required)
IS 50 Telescope: Magnification = 16xWA; Field/1000m = 67 (40925 eyepiece adapter required)
MM2 52 Telescope: Magnification = 15xWA; Field/1000m = 60
