How to stack several series of subframes DSLR
Thank you for your question and welcome to the forum 😉
Best is to first calibrate the 2 sets separately and save them in 2) calibrate. Make sure calibration is working nicely and I suggest to make a Bad Pixel Map if you haven't done so already.
Then if you have correctly calibrated both sets of frames, then simply load all of the the calibrated light frames and process starting from 3) Analyse Stars.
Let me know if this helps and if you have any other question.
Main developer of Astro Pixel Processor and owner of Aries Productions
Thank you very much Mabula!
Well, finally I managed merge all my data from the two series, 200 ISO + 1600ISO.
I very happy with your software: the result is better than what I´ve reached with Pixinsight.
And the best is that the simplicity: I just load directly ALL my LIGHTS, DARKS, FLATS and BIASS from the two series.
Maybe I should have listenning to your advice about the proper workflow, but anyway this is the result without any post-processing