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I had purchased 2" Ultra EPs (7mm, 18mm & 24mm) from Harry early this year (2009) together with the PowerMag Wheel Barlow - they are indeed light and well-built with good workmanship rather than classy and snazzy looking - I suppose "plain vanilla" would be the right way to describe them!
I did not notice the flarings and internal reflections when viewing Jupiter recently and the Moon thru my 12" SW FlexDob and the whole combination of EP + PMW was not too bad considering the convenience factor, of course there were certain combinations that did not work too well eg when the EP fL was not suitable with the mag factor of the barlow which of course had nothing to do with the EPs' quality!
Overall they worked with good crisp images of the stars etc but when compared to say an WO UWAN type of EP (I do have a collection of WO 2" UWANs too) I can safely say that the WO has a better edge sharpness and contrast which makes the background sky seem darker. Other than that I am quite happy with the Sieberts
My 2cents worth!
Cheers
Bill
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