XCel ED eyepieces

More Information  · Recommended Accessories Price $67.95 List Price $102.95 Field of view 55° Eye Relief 20mm Focal Length 10mm Number of optical elements 6 Barrel Size 1.25" Warranty 2 years Telescope Eyepiece Formula To calculate the magnification and approximate actual field of view of this eyepiece on your telescope, enter the focal length of your telescope below and press the "Calculate" button. mm

Combine that resolution with its good contrast due to its five-layer multicoated ED (extra-low dispersion) glass six-element design and you have an eyepiece that’s well-suited for lunar, planetary, and globular cluster observing with an SCT. (Some of the larger globulars, such as M13, will more than fill its 0.28 degree field with such a scope.)

It is also very good for medium power viewing with short focal length refractors and fast focal ratio Dobsonian reflectors. Eyeglass wearers will find its long eye relief particularly attractive. And all observers will like its low price.

A soft rubber eyecup shields the eye from ambient light and rolls down for more comfortable eyeglass use. A knurled rubber ring on the barrel provides a secure grip when changing eyepieces in cold weather.