So getting back into astro photography - I run several cameras simultaneously on 3 scopes - with SGP controlling my ZWO 1600MM-c and ZWO filter wheel and focuser on a Williams Optics 132mm refractor.
Side by side APT manages a ZWO 071MC-C to a Moonlight focuser to a Williams Optics 115mm scope.
So in APT I set the binning, gain, exposure etc… But in SGP I gather the Gain is detected by the camera driver on camera connect and it applies to all frames taken in an event sequence.
Last night I was doing a test / calibration run on NGC 5139. The camera driver defaulted to Gain of 240. I was shooting a sequence of 10 x (Luminance, Red, Green and Blue frames) - each of 2 minutes duration, each binned 1x1 each rotated through one at a time. The Red, Green and Blue frames all came out fine - I had no issues registering and stacking each seperately in 3 runs of DeepSkyStacker 64 bit. The Luminance frames were way too blown out - I presume a 240 gain on a 120 second shot on the 1600MM-c is way too high.
Is there a way I can run a sequce like this - but set different gain for different filters (through event options or something for the Luminance frames)?
I don’t want to have to disconnect the camera and reconnect it with a different gain each time I wish to shoot Luminance frames. Similiarily when I shot narrowband frames I might wish to change the gain too.
Appreciate any help that can be offered - on the optimal gain for a target like NGC 5139 on a ZWO 1600MM-c and how to set lower Gain for just the Luminance shots on the sequence!
One other wierd behaviour - for all the colour filter light frames - the camera name was inserted for the file name, but for the Luminance frame no camera name appeared…
The Event Name was 5139 - and I set the suffix to be the same too
The file name selected was the same for all - %ft%tn_%el_%fe_%bi_%su_%04 so wondering why my files were names:
NGC 5139_120sec_Green_1x1_NGC 5139 Green 1600MM_0007 or
NGC 5139_120sec_Red_1x1_NGC 5139 Red 1600MM_0005 or
NGC 5139_120sec_Blue_1x1_NGC 5139 Blue 1600MM_0004 vs
NGC 5139_120sec_Luminance_1x1_NGC 5139_0002
If the clouds go away I will try the 64 bit version 220.127.116.112 and determine its behaviour too!
OS: Windows 10 Pro
Ver: SGP 18.104.22.1680