Optical reference
Celestron NexStar Evolution 8: aperture, focal length and eyepiece fit
What the Celestron NexStar Evolution 8 measures, the magnification and true field each eyepiece produces in it, and the barrel, mount payload and camera adapter that fit.
Published specifications
Eyepiece ladder
2 pairings| Pairing | Magnification | True field |
|---|---|---|
| Celestron Omni 6mm Plossl in the Celestron NexStar Evolution 8 | 339x | 0.15 deg |
| Tele Vue 20mm Plossl in the Celestron NexStar Evolution 8 | 102x | 0.49 deg |
The Evolution 8 puts the 203 mm f/10 C8 optics on a rechargeable WiFi fork. Its 2032 mm focal length excels on the Moon, planets and doubles and reaches deep-sky objects well at lower power.
Because magnification is the telescope's 2032 mm focal length divided by the eyepiece focal length, a 25 mm eyepiece gives 81x here and a 10 mm eyepiece gives 203x. The highest useful magnification is the published 480x, beyond which the image dims and softens without showing more detail.
The focuser takes 2 in eyepieces, so long 2 in wide-field eyepieces such as the Omni 56 mm fit as well as 1.25 in ones.