TMB Planetary Eyepiece – 8mm (58°)
The TMB Planetary 8mm eyepiece is a highly versatile option for lunar and planetary observing, offering an excellent balance of magnification, contrast, and ease of use. With a comfortable 58° apparent field of view, it delivers immersive views without feeling restrictive.

The 8mm focal length is particularly forgiving of average seeing conditions, making it a reliable choice for regular observing sessions. It performs well on the Moon, Jupiter, Saturn, and other bright targets while remaining comfortable for extended viewing.
Featuring robust construction, a matte black finish, and comfortable eye relief, this eyepiece is suitable for both beginners and experienced observers looking to build a balanced planetary eyepiece set.
Key Features
- 8mm focal length for medium planetary magnification
- 58° apparent field of view
- Optimised for lunar and planetary observing
- Comfortable eye relief
- Standard 1.25-inch barrel
Specifications
- Focal Length: 8 mm
- Apparent Field of View: 58°
- Eyepiece Type: Planetary
- Barrel Size: 1.25"
- Application: Visual astronomy
What’s Included
- 1 × TMB Planetary Eyepiece – 8mm
- Protective end caps