Sky-Watcher 12.5mm 40° 1.25″ Illuminated Reticle Eyepiece
When you use a Go-To telescope, the success of your whole observing session depends on one step - centring an alignment star precisely in the field of view. This Sky-Watcher eyepiece with a 12.5mm focal length is designed exactly for that purpose. The 40° field of view gives you enough sky to locate your star quickly, while the illuminated dual crosshair lets you centre it with confidence - no guessing, no uncertainty.
Why an illuminated reticle eyepiece?
Anyone who has tried to align a Go-To mount at dusk or in complete darkness knows the problem. Without a clear reference point, placing a star precisely in the centre of the field is difficult. The illuminated crosshair solves this directly. The reticle lines are always clearly visible, whatever the conditions, and the centre point is unambiguous.
Ready to use with most telescopes
The standard 1.25″ barrel fits the focuser on the vast majority of telescopes available today. Simply insert the eyepiece and use it without any adapters - both for the initial mount setup and for fine-tuning the star position afterwards. The 12.5mm focal length provides enough magnification for precise work without making the field of view unnecessarily narrow.
How alignment accuracy affects your whole evening
Go-To mount alignment requires the reference star to be placed as close to the centre of the field as possible. A small error may seem unimportant at low magnification, but when you switch to higher magnification or engage automatic tracking, that error is multiplied. Centring your alignment star with an illuminated crosshair directly affects how reliably your Go-To system will perform for the rest of the night.
A trusted tool from a well-known brand
Sky-Watcher is a well-established name among astronomers, and their accessories have proven themselves in practical use. This eyepiece is no exception - it is a functional tool for a specific and important part of the observing process. If you regularly use a Go-To mount and want a reliable solution for calibration, the Sky-Watcher 12.5mm illuminated reticle eyepiece will save you time and unnecessary frustration during setup.
Specifications
| Parameter |
Value |
| Focal length |
12.5mm |
| Field of view |
40° |
| Barrel diameter |
1.25″ |
| Reticle type |
Dual crosshair, illuminated |
| Compatibility |
Standard 1.25″ focuser |
| Recommended use |
Go-To mount alignment |
