Sky Instruments(Antares)
Antares 2in 25mm 74 deg.AF Speers-Waler Series4
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- SKU:
- ANT-SW25S4
- MPN:
- 3404-SW25S4
- Condition:
- New
Description
Antares 2in 25mm 74 deg.AF Speers-Waler Series4
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.
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