Hi Tobi.
I own the same camera with the same amp glow.
I made darks of all my standard settings (temperature, gain, filters and time) and stored them on HDD.
Same with Bias.
I have no need to take darks at every session, I just use the stored darks and Bias.
Only flats could not be stored because of possible dust and the camera angle of the single frames you have taken.
My usual workflow is to set everything at the desired object, do the flats and after this configure the sequence.
Even if you use the plan and go to different objects in one night you can use the same flats if you do not change camera rotation.
If you want to create such a darks database, best way is in a cloudy night outside. 🙂
Outside because it’s normally cooler than inside and the peltier elements don’t heat up so much, specially with darks taken at -15° or -20°.
Btw, using the 294 at -20° does not guide in better frames, the frames taken at -10° are almost the same quality, besides of a saving energy if you are outdoors using a battery.
Cs
Team Deepflights
