Hi all
I'm trying to find the best settings to make use of my setup and time imaging, and some of the advice I have read isn't really helping me.
I have a GSO 6" RC f/9 and LRGB ZWO filters with Astronomik HA and OIII 6nm filters. I also have a belt mod on my HEQ5 Pro and on a good night I can track for 20min, but would like to keep it under 15min.
I live in 21.3 skies which is at the bottom end of bortal 4 almost bortal 3 skies.
From the past few nights I have been trying different settings. On the same target.
At Gain 0 the ADU should be around 420
For L 4min exposure I got is 430 ADU and 5 min is 450 ADU.
But at Gain 75 the ADU should be 340.
For L 5 min exposure is 350 ADU
Why do I need a longer exposure at a higher gain?
Even my RGB ADU at both gain settings need over 5min to reach the desired ADU settings.
Even my NB filters showed no improvement for ADU at 15min exposure.
Do I change it to unity settings as I cannot put on a focal reducer on my scope.
I'm using this to compare my data with,
http://www.iceinspace.com.au/forum/s...d.php?t=155908
http://www.iceinspace.com.au/forum/s...d.php?t=167167
Any help would be great. I just want to find the best settings for my setup without losing the quality in the images.