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Hi Lee,
Sorry to be a bit late in seeing your post. Yes, I do have some blue fringing issues with my TEC140/Trius combination. However, on many targets it isn't a big deal. On bright blue stars it can be but there are ways to process this out. I've tried the fringing type filters: Baader Fringe Killer, Baader Semi-Apo, Schott GG420, GG435, and Hutech IDAS. The Hutech helped some and I still had good colour balance with my Baader filters. The others caused quite a bit of loss in blue and they tended towards green and were difficult to process. The Baaders transmit further into blue than I believe Astronimik filters so you might want to look at the blue transmit freq. before you decide which to buy. On the other hand with my KAF8300 CCD I didn't have any blue issue...and it's a larger, but noisier, CCD to boot. Perhaps it would be a better match, though a little lower resolution.
Nobody else has questioned your desire to photograph galaxies with this scope. I'd seriously question if ca 700mm is a long enough fl to make you happy. There are only a few "big" galaxies; a lot are pretty small! Before you plunge down the money you might want to reconsider if a fast newt with larger apeture (like what Ray is doing!) might better suit. Just my 2 cents.
Peter
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