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$38.83
Original: $110.95
-65%Antares 2" 25mm 74 Degree Speers-Waler Series 4 Eyepiece - SW25S4—
$110.95
$38.83The Story
Speers-Waler Series4 2" 25mm eyepiece offers a wide 75 degree AFOV with superb correction.
Focal length 25.0mm
Eye relief : 10mm
Elements:(6)
The Series4 25mm performance
Edge field curvature (546nM): Sagittal,-0.22mm, Tangential: 0.23mm.
Edge lateral color (420-656nM): 0.009mm.
Chromatic focal shift (420-656nM) 0.38mm.
Full performance specifications on request.
Description
Speers-Waler Series4 2" 25mm eyepiece offers a wide 75 degree AFOV with superb correction.
Focal length 25.0mm
Eye relief : 10mm
Elements:(6)
The Series4 25mm performance
Edge field curvature (546nM): Sagittal,-0.22mm, Tangential: 0.23mm.
Edge lateral color (420-656nM): 0.009mm.
Chromatic focal shift (420-656nM) 0.38mm.
Full performance specifications on request.
