Antares 9.1 mm Speers-Waler Series 4 Eyepiece - 1.25" - SW9S4

In Stock
Regular price $216.00 CAD

Product details


Antares 9.1 mm 1.25" Speers-Waler Series 4 - 86° Eyepiece

Product Highlights:

  • Antares Speers-Waler Type Series 4 Eyepiece
  • 1.25" Barrel, 9.1 mm Focal Length, 8-Element Eyepiece
  • 86 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 9.1 mm and an AFOV of 86°. It is a 1.25" barrel type eyepiece with a 8-element optical lens design. This 9.1 mm 1.25" Speers-Waler Series 4, 86° 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. It is also camera adaptable.

NOTE: One photo shows the lens attached to a Digital camera for illustration purposes, only. This product does NOT include a camera.


Antares Model No: SW9S4
Barrel Diameter: 1.25"
Apparent Field Of View: Wide Angle - 86°
Focal Length: 9.1 mm
Eye Relief: 10 mm
Lens Elements: 8
Optical Design: Speers-Waler
Image Correction: High Quality, Series 4
Edge field curvature (546 nm): Sagittal, -0.1 mm, Tangential: 0.19 mm
Edge lateral color(420-656 nm): 0.007 mm
Chromatic focal shift (420-656 nm): 0.09 mm