I have used this eyepiece on my Celestron 9.25 for several months and the views it gives are spectacular! It really brings out the beauty of large objects like M31. I can see M31 and its companions in the field. Also makes visible large swaths of the Veil nebula. The only concern that some may find with this eyepiece is that on a large f-stop scope, the field may seem a bit concave, but I havent found that to be a noticeable problem.