When the focal length of the telescope is too long to observe a large area of celestial body with low magnification (such as the moon), you can connect the telescope with a focal reducer, shorten the focal length first, and then use a low magnification lens to observe.
| Model | F9154A |
| Focal Reducer | 0.5x |
| Barrel Size | 1.25"/31.7mm |
| Thread Interface | M28.5x0.6 thread |
| Sleeve Material | Full metal aluminum alloy |
| Lens Material | Pure optical lens |
| Color | Black |
| Total Height: | 20mm |
1. When the focal length of the telescope is too long to observe a large area of celestial body with low magnification (such as the moon), you can connect the telescope with a focal reducer, shorten the focal length first, and then use a low magnification lens to observe
2. 2 element optical design with fully multi-coated optics
3. Besides the male thread, it also has female thread at the rear end to fit filters
4.. The focal reducer is great for visual use for a bigger FOV and is indispensable when CCD imaging