Celestron Moon Filter 1.25

Celestron Moon Filter 1.25

The Celestron moon filter is like a pair of sunglasses for your telescope, because the moon?s light is too bright this filter reduces the amount of light entering your eye. Not only does it enable you to see more surface detail but it also reduces the moon?s brightness by improving contrast. The Celestron 1.25 inch moon filter is an economical eyepiece for reducing brightness, the clear aperture is 21mm for this 1.25 inch filter.

• Clear aperture 
• 21mm 
• 1.25" filter
• Transmission is about 18%.