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Topics - sbenz

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General / Flat frames for OSC images
« on: 2018 October 31 11:13:09 »
Hello all,

I am shooting my images with an OSC ("one shot color") camera (ZWO ASI071MC Pro).

I have some doubts whether I am applying my flat frames correctly.
White images coming directly from the camera have a strong greenish color, as they are not white calibrated yet, so also all my flats (taken with a pure white flat field box) are quite greenish.

I have now three options:
- take the flat frames as they are (greenish) and apply them in Pixinsight. I doubt that this will lead to good pictures.
- color calibrate the flat frames before applying them. (how?)
- shoot flat frames in black&white mode (this is possible e.g. in Sharpcap)

So far I used option 3, but I do not known if this is a good idea to apply a black&white flat frame to a color image.

Anyone any ideas?
How do you process your OSC images with flat frames?


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