Thread: Sa100
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Old 01-10-2024, 05:17 PM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
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Hi Ken,

Yes, I know about the order prism-grating.
However, I was wandering how to increase dispersion on the setup (earlier w/o Tilter) by increasing the distance of grating from sensor, and found a discussion somewhere (when I find it again, I will post it here) that the order can be reversed (by mirroring the whole assembly), and indeed I tested this by making mistake (just reversing the order), see here: https://www.iceinspace.com.au/forum/...6&postcount=19


My first results with this setup were on Sat night, Nova Sco.


I am also thinking about slightly different setup, like on the attached image.
Basically, I want to convert f/10 beam to parallel, to avoid coma.
This will be my next project..
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Last edited by bojan; 01-10-2024 at 05:49 PM.
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