Product Description
It can also be used for imaging through your scope with a smart phone. Click on the "Recommended Accessories" tab above to find the adapter you need.
It is generally too short a focal length for use with long focal length refractors, reflectors, or catadioptric scopes under anything less than absolutely perfect (and accordingly very, very rare) seeing conditions. For example, using it with a 2000mm 8" f/10 Schmidt-Cassegrain will result in 870x (109x per inch of aperture) and a 0.23mm exit pupil (about 1/100th of an inch across). Both of these far exceed the rule of thumb maximum values of 50-60x per inch of aperture and a 0.5mm exit pupil for usable observing under excellent seeing conditions, even for experienced observers.
It has a twist-up rubber eyecup and a usable eye relief of 16mm, for virtually unvignetted use with eyeglasses. A no-slip rubber grip ring provides a secure and comfortable grip when handling or changing eyepieces in cold weather. It is parfocal with the other X-Cel LX models so it will require little refocusing when changing between focal lengths.
The Celestron X-Cel LX 2.3mm comes with dust caps for both ends of the eyepiece and a bolt-type plastic storage case.
Tech Details
Barrel Size | 1.25" |
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Eye Relief | 16mm |
Field of view | 60 |
Focal Length | 2.3mm |
Number of optical elements | 6 |
Weight | 8 oz. |
Warranty | 1 year |