I was expecting a little more from this piece. I had high hopes based on the reviews I've read here and on forums. Its definitely decent for the price point, but I personally spend more time trying to find the sweet spot and chasing that black circle around than actually viewing anything. Honestly, if your on a budget, save up a little and go with a slightly more expensive piece like WO SWAN in 40mm. On the view itself once you find it: Its crisp and lacking much if any distortion. It is a long focal length so to me thats kind of a given.
Eyepiece is great, views are amazing
I use this regularly on my 6" f/10 refractor and my 7" f/15 Mak. I do not like to use it on my f/4 12" reflector. This eyepiece is exceptional, showing pinpoint stars to the edge on both my refractor and the Mak.
Decent Eyepiece for the price. A necessary tool for low power views in a Celestron 11. Positive : light weight for it's size. Negative : field stop is VERY blurry.
I have no complaints about the build or image quality - they are both good. However I found that I could not view for more than a few seconds without drifting into a blackout zone. It may well be my fault rather then the EP but the viewing was just not comfortable for me. I hope everyone else will have a better experience with this good quality EP.
This eye piece has very sharp optics across 97 to 98% of the viewing field. The stars are bright and sharp as tacks. The Orion nebulae looks nice and the four small stars in the dark inner border of the cloud are clearly visible. Pleiades covers the entire viewing field of the lens with all stars in good focus. If the viewing field was more like 68 degrees this eyepiece would be truly spectacular! But it is not bad at all as it is and again 5 stars for the clarity factor.