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Originally posted by Scopulus Argentarius
Thats a combo telescope...hmmm... I'd always wanted to try one of those.
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I like it a lot, and they're a real steal if you can handle the older non-computerized version. ($170 for just the scope with table-top tripod legs, or $300 for the scope and tripod.)
I wanted something to give me better views of the planets, and I figured I didn't need a "go-to" setup to find Jupiter for me. I've been very happy, and I haven't even gotten to see Jupiter yet (which is my primary observing interest--I bought the scope after it was gone for the summer), but Mars and Saturn have been wonderful. I can see Cassini's division and some of the banding on Saturn.
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I had chroma problems too....not as bad as you've experienced and mostly with my 12mm ocular.
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The telescope shows very little color, except with the one eyepiece.. but that's the one I hook the camera up with!!
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Have you considered a 2X or 3X barlowe lense?
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I have a 2x but I rarely use it these days. With the long focal length of the ETX-90 there's not as much need for it to up the magnification. I have a Televue 8mm Plossl that gives 156, which is about as high as I can go without the image breaking up. Although if I can get the color of the 14mm camera eyepiece corrected it would probably give a nice view with the 2x barlow.