I used it to check out the Ring Nebula and a number of other objects under strictly mediocre seeing. Mind you, this was after looking through two truly EXCELLENT telescopes, a 16" and a 24". I found the images to be rather soft and the telescope quite shaky, although that is the POINT of his engineering approach, let it shake but make it damp out.
What I am primarily concerned with is the ability to retain collimation. For a 30" mirror of such a short focal length (f/3?), the collimation tolerances are VERY small. I am skeptical about the scopes ability to retain collimation. I also the question of use of such a fast f-ratio, which is of course abolutely necessary to make the scope work.
Steve does self publish a little book about his telescope building methodology and somehow, I missed picking up a copy at last years RTMC. I will have to do so this time around, because it is quite an interesting bit of homebrew technology, with hints and tips that are no doubt useful even if you don't use them to build a "Lightweight Giant".
Mark
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Mark T. VandeWettering Telescope Information (and more)
Email: <markv@pixar.com> http://webspace.com/markv/
<markv@webspace.com> Clear Skies!