Quote:
Originally Posted by rustigsmed
here is what an o3 filter (8.5nm) looks like on a (colour) dslr.
https://www.flickr.com/photos/80336656@N07/16601437552/
looking at the G and B channels, the signal is WAY stronger in the G - but I'm not sure if that's because it has double the pixels in the bayer matrix... - either way its probably 5x plus richer in G (total guess)
not sure that helps at all. of course its rare to have o3 just by itself so a light pollution filter/osc will likely give a different hue. |
Thanks Russ! That's a pretty interesting result. Can't wait for Eta Carinae to get higher in the sky.
It hadn't occurred to me to stick the filter wheel in front of a DSLR...I'll have to give that a try
Quote:
Originally Posted by RickS
The ZWO filters do look pretty crappy in that regard. The Astrodon filters have a much nicer overlap at 500nm. I'll withdraw my previous comment.
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From what I've found so far, the Baader CCD and Astronomik Deep Sky both overlap at 500nm. The Astrodons apparently are too tall to fit in the ZWO filter wheel.