Sky-Watcher 10mm 1.25″ Erecting Eyepiece
When you use a refractor to watch landscapes, birds, or distant objects during the day, an upside-down and mirror-reversed image quickly becomes uncomfortable. This eyepiece solves that problem from within - its built-in prism system flips the image so it appears correct in both orientation and left-right direction, exactly as you see it with your own eyes. No external diagonal or star diagonal is needed.
The Sky-Watcher 10mm erecting eyepiece is designed primarily for daytime terrestrial observation with refractor spotting scopes, but it fits Newtonian telescopes just as easily. The field of view is narrower than that of standard eyepieces, though it is fully sufficient for its intended purpose.
Comfortable viewing for daytime use
A focal length of 10 mm provides enough magnification for detailed observation of distant subjects. The compact design and a weight of just 80 g mean the eyepiece puts minimal strain on lighter tripods and focuser tubes alike.
Who is this eyepiece for?
This eyepiece suits anyone who uses a refractor for terrestrial viewing and wants a natural, correct image without adding a separate diagonal. It is a practical and straightforward solution for birdwatchers, nature observers, and anyone watching distant scenery.
Key features
- Built-in prism system - no external diagonal required
- Correct upright and laterally true image for comfortable daytime viewing
- Focal length: 10 mm
- Barrel diameter: 1.25″
- Compatible with refractors and Newtonian telescopes
- Weight: 80 g - suitable for lightweight setups
Technical parameters
| Parameter |
Value |
| Focal length |
10 mm |
| Barrel diameter |
1.25″ |
| Image orientation |
Correct - upright and laterally true |
| Prism system |
Built-in erecting prism |
| Weight |
80 g |
| Compatibility |
Refractors, Newtonian telescopes |
