HELP Masterflat does not calibrate my light frame

Did you use APP to process all data from raw? It usually doesn't work if you create calibration frames in another application and then try to use that.

I took all my frames with N.I.N.A. and the flats/darkflats/bias with SharpCap. The complete progress was done in APP.

The camera is a QHY183M with filterwheel.

I uploaded 5 frames of each to my dropbox:

https://www.dropbox.com/sh/j5p2xammoozuyr0/AAB8ZoNLCbUOgwtEkxunwpGga?dl=0

I also tried a master flat frame calibrated with dark flat and another with bias frame.

Posted by: @gru89

I took all my frames with N.I.N.A. and the flats/darkflats/bias with SharpCap.

As Vincent pointed out, taking lights with one and calibration frames with another application usually doesn't work. Please try taking the calibration frames with NINA as well and see if that solves your issue.

On all my other projects this was never a problem. I shot with my other scope on the same night. Same procedure. Lights with NINA and Flats with SharpCap. Calibration worked perfectly. 

But I will give it a try after work! Thank you so far.

Thank you. That worked for me. But curious that it always worked before 😀 

Happy weekend!

@gru89 Glad to read that it worked.