Focal Length: 8-24mm
Angular Field of View (deg): 40-60°
Eye Relief: 18-15mm
Barrel Size: 1.25″
The Celestron Zoom 8-24mm is a fully multi-coated eyepiece that allows you to change magnification without ever changing your eyepiece, to save you from fumbling around in the dark.
The eye relief of the zoom eyepiece decreases as the focal length decreases. You will also find that the apparent field of view decreases as the focal length increases; which is very different from what you typically get from lower power eyepieces. When compared to individual eyepieces of varying focal lengths, the zoom eyepiece does provide less contrast. Where the zoom eyepiece makes up for these limitations is in being able quickly change the magnification to suit the viewing conditions and provide a wide variety of magnifications in one reasonably priced eyepiece.
2-year Accessories Warranty included