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Old 25-05-2015, 08:41 AM
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PRejto (Peter)
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Join Date: Jan 2011
Location: Rylstone, NSW, Australia
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I think it's possible to take advantage on near IR guiding without an ONAG if the proper IR filter is placed in front of an OAG camera. If I remember correctly Greg Bradley tried this and saw some improvement. I cannot find the thread but Gaston (inventor of ONAG) comments here:

http://www.iceinspace.com.au/forum/s...2&postcount=28

Peter

PS I have it on very good authority that a very well known company in astronomical gear will shortly release a kit of sorts to allow Sharplock type of focusing with OAG + IR Filter. Think of the possibility of never focusing for the night! Boggles the mind.
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