Celestron 66-Degree Wide-Angle Eyepiece Series, 1.25-inch Interface, with 4 Focal Length Specifications: UW6mm, UW9mm, UW15mm, UW20mm.
- **Brand**: Celestron
- **Model**: Celestron UW6mm, 9mm, 15mm, 20mm Astronomical Telescope Eyepieces
- **Focal Length**: 6mm, 9mm, 15mm, 20mm respectively, high-power eyepieces
- **Field of View Angle**: 66 degrees (Generally, an eyepiece with a field of view angle greater than 48 degrees is called a wide-angle eyepiece)
- **Size**: Standard 1.25-inch/31.7mm Universal Accessory for Astronomical Telescopes
- **Application**: Suitable for astronomical telescopes (1.25-inch 31.7mm interface), used for observing celestial bodies such as the lunar surface, planets, nebulae, star clusters, and diffuse nebulae. It features high brightness, a large field of view, and very comfortable observation. With a metal body and full-surface multi-layer coating, it has excellent optical performance.
This product is finely crafted and has the advantage of a long eye relief, making it suitable for landscape and celestial observation. It performs well in both planetary and deep-space observation, without introducing additional chromatic aberration. The long eye relief makes long-term observation more relaxed. 
 When used on an astronomical telescope, the smaller the focal length of the eyepiece, the greater the magnification. Eyepieces with larger numbers have lower magnification. During observation, a telescope with high magnification can observe details of objects, while an eyepiece with low magnification can observe landscapes, nebulae, and other objects with a wide area, making it convenient to find detailed targets.