TS Optics HR Planetary Eyepiece is designed for observers seeking maximum sharpness and contrast in planetary, lunar and deep-sky observations. This series combines high-quality glass with multiple coatings and thoughtful design to minimize distracting reflections and maximize light transmission. The result is a bright, high-contrast image with fine details often lost with standard eyepieces.
Thanks to an eye relief of 16-20 mm, you observe for long periods of time without getting tired. The wide 58°-60° field of view also gives you a natural and spatial view of the sky, making object tracking more enjoyable. The robust metal body with non-slip grip ensures durability and comfort, while the 1.25-inch connection makes the eyepiece compatible with virtually all telescopes - from Newton reflectors to Schmidt-Cassegrains and refractors.
Application
The HR series offers a wide range of focal lengths, so you can always choose the right magnification:
- 2.5-4 mm: extremely high magnifications for planetary details and double stars (useful only with good seeing and high-quality telescopes).
- 5-9 mm: ideal for detailed observations of the moon, Mars, Jupiter and Saturn, and compact deep-sky objects.
- 15-25 mm: suitable for broader deep-sky objects such as nebulae, clusters and galaxies.
With these eyepieces you can see, among other things:
- Cloud bands and storm structures on Jupiter
- Cassini separation and shadow play in Saturn's rings
- Polar caps and surface contrasts on Mars
- Fine relief of craters and mountains on the moon
- Bright star clusters and nebular structures in deep-sky
Specifications
- Available focal lengths: 2.5 / 3.2 / 4 / 5 / 6 / 7 / 8 / 9 / 15 / 20 / 25 mm
- Field of view: 58°-60°
- Eye relief: 16-20 mm (depending on focal length)
- Barrel size: 1.25 inches
- Design: HR Planetary eyepiece
- Optics: multiple coating, anti-reflection design
- Filter thread: suitable for standard 1.25-inch filters
- Housing: metal construction with non-slip grip
- Series: TS Optics HR






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