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While observing the moon or planets
planetary and solar subject matter as well as on deep sky objects
Aperture (mm): 90 mm (3
Three focuser extension rings are provided for a “flex-free” solid extension as a means to take up any unneeded back focus
25" outside diameter will be 159 mm (6
Antares 9.1 mm Speers-Waler Series 4 Eyepiece - 1.25" - SW9S4 Tripods While observing the moon orAntares 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
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