- Celestron’s Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast
- Greater detail can be observed on the lunar surface
- The clear aperture is 21mm and the transmission is about 18%
- Moon Filter – 1-1/4″
Celestron’s Moon Filter is an economical eyepiece filter for reducing the brightness of the moon and improving contrast, so greater detail can be observed on the lunar surface.