Thanks for the nice comments everyone. Agree that colours are kinda 'IN YOUR FACE!!" but does give it a bit more "punch" which I quite like here.
Quote:
Originally Posted by rcheshire
Out of curiosity, would like to see the result at iso 800 or 400 with longer integration time.
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From a full well perspective that would have no effect. 2mins at ISO1600 uses up just as much of the well as 4mins at ISO800, as the gain is double at ISO1600. So no improvement from a star colour perspective there.
I did a little experiment a month or so ago with this camera to establish the relative SNR of different ISO and sub durations. ISO1600 comes out ahead of ISO400 and ISO800 for all of the sub durations tested (see attached). I used 2min subs for this image as a) I already had a dark master at this sub length, and b) it would give me lots of subs for the total integration time, and as the subs were dithered it would help to further improve SNR. I also left the scope unattended during this run, so I wanted to ensure I would have as many useable subs as possible (and in the end, i used all of them). FYI I have not actually applied any noise reduction to the image in the original post.
also, based in this experiment, I am now using ISO1600 for all targets now with this camera.