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Thanks Bird for the info, your system is similar to the SCT that I have, except i have my scope permanently outside under three tarps, and I dont have fans for cooling, but do have a closed system and aluminum casing. I think that either my collimation is out (possible) or the seeing is bad ( most likely during summer) or my barlow lens a 2x teleconverter is not aprochromatic. I can't nut it out, On nights when the image is nice and crisp through the EP and barlow I still cannot get shots totally focused, they have a blue cast at one end and a red cast at the other end of the image. I have to do way to much wavelet adjustments to get a reasonble image, which means it looks over processed. Although I must say, that when the air is cold, the imaging does get better. How do I conquer this problem. Aside from patience.
Sorry for the whinging, but getting up early to image and then having this happen time and time again, makes me testy. And I want to break through that final barrier to getting images I can really be proud of.
Thank for your patience.
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