TS Optics High End Planetary HR 15mm 58° 1.25″ Eyepiece
The name "planetary" does not fully capture what the TS Optics HR Planetary eyepiece can do. It performs equally well on planets and the Moon, on deep-sky objects, and in projection photography. This is a versatile eyepiece that handles demanding observing conditions without compromise.
Precise detail on planets and the Moon
The HR Planetary stands out for its high contrast and sharp imaging on the optical axis - exactly where it matters most when observing planets. The comfortable viewing experience means your eyes tire more slowly, so you can take your time searching for fine detail in planetary atmospheres or across the complex surface of the Moon.
Clear performance on deep-sky objects
Compact deep-sky objects place different demands on an eyepiece. They are faint, low in contrast, and easily lost in scattered light. Multi-layer coatings on all air-to-glass surfaces maximise light transmission and suppress unwanted reflections. The result is a bright, clean image with good resolution across the field - not just at the centre.
The 58° field of view gives you enough context around the object you are observing without requiring you to reduce magnification.
Key features
- Focal length: 15mm
- Field of view: 58°
- Barrel diameter: 1.25″
- Multi-layer anti-reflection coatings on all air-to-glass surfaces
- Suitable for planets, the Moon, deep-sky objects and projection photography
- Comfortable eye relief for extended observing sessions
Technical specifications
| Parameter |
Value |
| Focal length |
15mm |
| Apparent field of view |
58° |
| Barrel diameter |
1.25″ |
| Optical coatings |
Multi-layer on all air-to-glass surfaces |
| Application |
Planets, Moon, deep-sky, projection photography |
Who is this eyepiece for?
The HR Planetary 15mm suits anyone who wants one eyepiece that covers a wide range of observing targets. It works well for beginners who want reliable, sharp views from the start, and for more experienced observers who need consistent contrast and image quality across different object types.
