Quote:
Originally Posted by Starrymessenger
Looking for filters to use in a wheel, to do photometry. Looking for a "v" and "I" filter specifically.
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There isn't a cheap way of doing this.
I use Astrodon filters.
http://www.astrodon.com/store/p10/As...I_Filters.html
There are a few brands but "cheap" isn't one of them. Roughly US$200 each filter.