Antares 6 mm Speers-Waler Series 4 Eyepiece - 1.25" - SW6S4 Celestron Evolution Hinged ring system separates easily

Hinged ring system separates easily by loosening the over-sized metal thumbscrews

About the Tele Vue In-Travel Adapter

The housing is also filled with dry nitrogen gas to prevent the internal lenses from fogging when moving between extreme temperatures or when using the binocular in damp conditions

The motors connect to the worm gears with a belt-and-pulley system (instead of spur gears) to reduce gear backlash when the motor changes directions

Antares 6 mm Speers-Waler Series 4 Eyepiece - 1.25" - SW6S4 Celestron Evolution Hinged ring system separates easilyAntares 6. 1 mm 1. 25" Speers Waler Series 4 86 Eyepiece Product Highlights: Antares Speers Waler Type Series 4 Eyepiece 1. 25" Barrel, 6. 1 mm Focal Length, 8 Element Eyepiece 86 Degree Apparent Field of View (AFOV) 12 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 6. 1 mm and an AFOV of 86. It is a