Is anyone aware of a comprehensive discussion of the relative merits of LRGB vs. OSC imaging? I am aware of multiple interesting CN threads and such but feel they are not necessarily comprehensive as they typically to a large extent discuss the issue in photon counting terms (or maybe better called counting photon terms). Or they bring up issues of chance: if you are unlucky with weather you could lose e.g. all your red subs. But the counter argument to that is to collect more data on a different day. I am particularly interested in two questions:
1. Given that blue and red dominates green for many DSO targets, does that suggest one should optimally spend less time collecting on the green channel, or perhaps one should collect more, or perhaps it doesn’t matter in practice?
2. When looking at spectral response curves for OSC sensors (see typical picture below left) it is striking how much bleed there is between color channels compared with RGB filters that have much reduced bleed (right). One example implication is that a non-trivial amount of Ha should show up in the green and even blue channels. The question then is whether this channel “leakage” makes a substantial difference in typical images.
Yes, I know in the end image processing and colorization are to a significant extent a matter of aesthetics but am curious to understand if people have poked at issues like this?
Cheers,
Paul
