The Orion DeepView 42mm 2" Eyepiece provides the brightest and sharpest deep space images at lower power and a wider field of view, giving an argument to the notion that strong magnification equals better views of deep-sky objects. The DeepView telescope eyepieces are machined with anodized aluminum housings and a 3-element lens design with multi-coatings for efficient light transmission. With 20mm of eye relief and a fold-down rubber eyeguard, glasses wearers will be able to comfortably keep their glasses on (if desired) while observing through the DeepView eyepieces. The 42mm eyepiece features a wide 52-degree apparent field of view and is free of pincushion distortion and chromatic aberration. The barrels are threaded to accept 2" eyepiece filters.