Sky-Watcher Silver Plossl 25mm eyepiece 52° 1.25″
Looking for a reliable eyepiece for wide-field viewing of star clusters, nebulae, or planets at medium magnification? The Sky-Watcher Silver Plossl 25mm is exactly what you need. It is based on the well-proven classic Plossl design and offers a comfortable balance between magnification, image brightness, and viewing comfort - whether you are a beginner or an experienced observer with high demands on optical quality.
Classic 4-element Plossl design
The 4-element Plossl optical design is one of the most popular and widely used eyepiece types in astronomy - and for good reason. Four optical lenses arranged symmetrically in two doublets provide excellent aberration correction, a sharp and high-contrast image across the entire field of view, and good light transmission. The 52° apparent field of view gives you a comfortable view without the feeling of looking through a keyhole, while the image stays sharp even at the edges.
The 25mm focal length makes this eyepiece an ideal candidate for the role of a first or overview eyepiece in any set.
Universal fit - works with most telescopes
The 1.25″ (31.75mm) barrel diameter is the absolute standard in astronomy. This means the eyepiece fits practically any amateur telescope with a 1.25″ focuser, whether it is a refractor, Newtonian, Maksutov, or Schmidt-Cassegrain.
The resulting magnification depends on the focal length of your telescope. Here are a few examples:
| Telescope focal length |
Magnification with Plossl 25mm |
| 750mm |
30x |
| 1000mm |
40x |
| 1200mm |
48x |
What can you observe with it?
Thanks to its moderate magnification and wide field of view, this eyepiece is suitable for a wide range of observation targets:
- Wide-field star field mapping and orientation
- Open star clusters
- Bright nebulae
- The Moon
- Planets at medium magnification
The Sky-Watcher Plossl 25mm is often included as standard equipment with telescopes, but it also makes a completely worthwhile standalone investment in quality optics.
Who is this eyepiece for?
This eyepiece is a great choice as a first or overview eyepiece - ideal for orientation on the sky and locating objects before moving to higher magnification. It is an excellent option for beginning astronomers who are looking for quality and affordable optics, but experienced observers will also appreciate it. The simple, robust construction and standard dimensions ensure that it will serve you reliably throughout your entire astronomy journey.
Key specifications
| Parameter |
Value |
| Focal length |
25mm |
| Apparent field of view |
52° |
| Barrel diameter |
1.25″ (31.75mm) |
| Optical design |
4-element Plossl (2 doublets) |
Summary
The Sky-Watcher Silver Plossl 25mm is simply the eyepiece that should not be missing from any astronomy kit. It provides a wide field of view, reliable performance, and optically balanced image quality - exactly what you need to enjoy observing the night sky.
