Quote:
Originally Posted by bmitchell82
Thanks Paul and Rob.
Its amazing what long exposure times do for the final image that coupled with lots of images give the SNR a good hit. It will be interesting to figure out how long my colour images will need to be so i don't get any blow out.
mmm 3 weeks till the new moon arrives! hopefully i will get the extra 4-6hrs of data i need to give some real punch to this image!
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Yes, burn out isn't hard with the QHY9 smaller well size and a big Newt. I think it depends a lot on how bright the object and stars are in your field. Still, there's a lot more headroom over a DSLR to play with too in the FITS files, so a bit of burnout in the centre of bright stars isn't the end of world to deal with in processing. that's a whole new adventure trying to decide whether to bin, and how longfor subs. I actually think the practical limitation of imaging time is a big one too. You really want at least 5 dithered subs for each filter and say 1.5 to 2 times as many Lum subs, so straight away longer sub times can be a challenge if your imaging time or horizons are limited.