Antares 25 mm Speers-Waler Series 4 Eyepiece - 2" - SW25S4
Regular price
$216.00 CAD
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Antares 25 mm 2" Speers-Waler Series 4 - 74° Eyepiece
Product Highlights:
- Antares Speers-Waler Type Series 4 Eyepiece
- 2" Barrel, 25 mm Focal Length, 6-Element Eyepiece
- 74 Degree Apparent Field of View (AFOV)
- 10 mm Eye Relief
- Includes Eyeshield
- Includes a Rubber Grip for secure handling
- Optics are Fully Multicoated
The Antares Series 4, Speers-Waler Eyepiece is a superb quality eyepiece with a focal length of 25 mm and an AFOV of 74°. It is a 2" barrel type eyepiece with a 6-element optical lens design. This 25 mm 2" Speers-Waler Series 4 74° Eyepiece from Antares has a 10 mm eye relief. It includes an Eyeshield, a Rubber Grip for secure handling, and all the optics are Fully Multicoated.
Specifications:
| Antares Model No: | SW25S4 |
| Barrel Diameter: | 2" |
| Apparent Field Of View: | Wide Angle - 74° |
| Focal Length: | 25 mm |
| Eye Relief: | 10 mm |
| Lens Elements: | 6 |
| Optical Design: | Speers-Waler |
| Image Correction: | High Quality, Series 4 |
| Edge field curvature (546 nm): | Sagittal, -0.22 mm, Tangential: 0.23 mm |
| Edge lateral color(420-656 nm): | 0.009 mm |
| Chromatic focal shift (420-656 nm): | 0.38 mm |