Explore Scientific 100° AR High End Eyepiece 30 mm (3 inch/76.2 mm) for Telescopes Multilayer Coating and Argon Protective Gas Filling

Unique combination of excellent edge sharpness even with fast optics and huge field of view. The patented EMD" coating in combination with internal bezels ensures high contrast and avoids annoying reflections. The argon filling effectively prevents fogging from the inside and you do not need to be afraid of dust, glass fungus or the ingress of cleaning liquid. The eyepieces are waterproof sealed - each eyepiece is tested for tightness by submersion. The blackened lens edges ensure reflex freedom and maximum contrast. Apparent field of view: 100° / eyepiece mount plug diameter: 76.2 mm / length of the plug-in sleeve: 40 mm / weight: 2275 g Box contents: 100° Ar eyepiece 30 mm (3 inches)