GSO SuperView 15mm 68° 1.25″ eyepiece
GSO SuperView eyepieces have long been among the most popular choices for amateur astronomers, and for good reasons. A 4-element optical design, carefully applied anti-reflection coatings on all air-to-glass surfaces, and blackened lens edges - all of this together ensures excellent contrast, minimal light scatter, and a comfortable visual experience. The 68° field of view is wide enough to make you feel truly immersed in the universe, while maintaining good sharpness across the entire field.
Versatile companion for the night sky
The 15mm focal length makes this eyepiece a versatile guide to the night sky. The GSO SuperView 15mm is an ideal choice for observing medium-sized deep-sky objects - planetary nebulae such as the Ring and the Blinking Planetary will reveal their shape and central star, while globular clusters will resolve into thousands of sparkling points of light. The Moon and planets also shine - the eyepiece provides sufficient magnification for surface details on the Moon and the atmospheric belts of Jupiter, while the comfortable eye relief allows relaxed viewing even with glasses on.
Wide field and compatibility with binoviewers
Thanks to the wide 68° field of view, the SuperView 15mm is also an excellent choice for binocular observation with a binoviewer attachment - the brain merges the two images more easily and the resulting 3D impression is truly impressive. The eyepiece also performs well with fast telescopes (low f/number), where many cheaper eyepieces fail due to coma and distortion at the edges of the field.
Barrel design and focuser compatibility
The 1.25″ eyepiece barrel is manufactured without a safety groove, which has a practical benefit - it eliminates the possibility of unwanted tilting of the eyepiece in the focuser and at the same time makes it ideal for use with compression ring focusers. This type of clamping holds the eyepiece securely without the risk of scratching or deforming the barrel - a feature appreciated by anyone who cares about the long-term condition of their optics.
Key specifications
| Parameter |
Value |
| Focal length |
15mm |
| Apparent field of view |
68° |
| Barrel diameter |
1.25″ |
| Optical design |
4 elements |
| Coatings |
Multi-coated, all air-to-glass surfaces |
| Lens edges |
Blackened |
| Safety groove |
No |
| Compression ring focuser compatible |
Yes |
| Eyeglass-friendly (eye relief) |
Yes |
Summary
Overall, this is an eyepiece that offers significantly more than its price category would suggest. Quality build, versatile performance, and a comfortable wide field of view make it an essential piece of kit for every active observer.
