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Old 03-10-2014, 08:10 PM
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PRejto (Peter)
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PRejto is offline
Join Date: Jan 2011
Location: Sydney, Australia
Posts: 1,290

I don't think you will have any "blue" issue with your newt. But, you might with the refractor. The Hutech IDAS does a pretty good job of helping blue focus so that's an option but at a ~35-40% exposure penalty. The Baader Fringe Killer might be a better option if you don't need any light pollution help in R & G. I've put a 2" filter wheel in front of my SX wheel so that I can get rid of the UV/blue filter for R & G. I do need the filter for luminance as well. Hopefully you will find this unnecessary. Please let me know how it turns out.

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