loved it! i’m a new telescope owner and was told that a moon filter would be worth it to buy starting out. I was able to see a lot more detail of the moon and in general with this piece. highly recommend
This filter is nice and it provides a good view of the moon. However, it only screws onto the stock Celestron eyepiece that my telescope came with, and none of my other eyepieces.
While the optical quality of this filter might be acceptable, the fiter cell is made of a cheap soft plastic. After only a few uses, it has become cross-threaded and is difficult to use in the dark. Due to the large filter cell diameter, it also reduces the aperture, causing some vignetting or restricted FOV on some of my eyepieces. On the positivew side, It is inexpensive. I would not recommend this filter to a friend.