Description
- Focal length fine-tuning for Hyperion eyepieces (all focal lengths)
- Up to 40% shorter focal length.
- Spacer rings fit between the negative lens and the 2" lens mount so that the respective eyepiece focal lengths meet your needs.
- A 13 mm eyepiece can be converted into, for example, a 9 or 11 mm eyepiece without any loss in quality.
- Baader Planetarium Hyperion Fine Tuning Ring 14mm
Baader Planetarium14 mm Hyperion Fine Tuning Ring - Black
