Wednesday, 29 August 2018 | Daniel
Bought this eyepiece because it has 20 mm which I need when I observe wearing eyeglasses. I have used it with a Tak FC-100, Vixen SD81S, Vixen A80M and Celestron C8 on moon, planets, double stars and DSOs.
Performance is excellent, producing excellent sharpness and contrast, and aberrations are extremely well controlled. Also, the eyepiece has an excellent quality feel to it and is very comfortable to use. Highly recommended.