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Thought I would give you some feedback on the 2"15mm UWA eyepiece that I recently purchased as well as the 30MM UWA the same stable. I used them last weekend on a 2" diagonal and 8" SCT f10 scope. The views with these eyepieces were far, far above what I expected from this price range of equipment. The 30mm gave wide panoramic views of M1 and M42 that had excellent contast and detail at least 80-90% of the view. Some may say the edge performance drops off a little - it does but I generally recenter an object to get the best view without going to peripheral type viewing. On the Sunday night the 15mm was nothing but exceptional. With the 8" scope the Trapezium was 6 round points of light and with both eyepieces I was able to see an incredible anount of detail in M42.
Steady views with sharp, contrasty details. The view was better on that night than I can remember through my 10" with any other eyepiece. There are a lot of comments on the web about these eyepieces - for one, I am more than happy with them and they are exceptional value for money. They give very satisfying wide angle views such that objects you have seen time and time again appear fresh and in a different context. I found it hard to go back to a 1.25" eyepiece irrespective of its field of view.
Worth far more than I paid for them and I would recommend them without hesitation.
As far as their performance in a fast Dob - I would expect more seagulls at the edge but in an SCT or MAK they would be excellent. MyAsttroShop has the best price on these at the moment ~$125
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