Quote:
Originally Posted by multiweb
Yes you can use an OSC to do narrow band. You just capture the Ha & Sii in the red channel and Oiii in the combined green and blue channel. Be aware that you will lose sensitivity as well as resolution as you record 1 pixel in 4 for the same surface area because of the bayer matrix.
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hi mark and pkay
apologies if this is remotely considered a hijack, but mark if i use an NB Ha filter on my dslr or my OSC, do i expose normally as a coloured light frame? / how do we assign a red channel to it? before exposure or after (in DSS?)
i have been wondering for a long time and dr google has not helped me!
apologies pkay!
pat