How to Create Master Dark with RAW Files?

[kerrywaz1]

I am trying to create a master dark from a set of RAW DSLR files and I must be doing something wrong as I keep getting a white frame.

Can someone please tell me the steps involved?

Thanks,
Kerry

[pfile]

first, convert the CR2 to fits files using the BatchFormatConversion script. at some point juan put format hints in there, but i think that feature disappeared. so go into the format explorer, double-click "DSLR_RAW" and set it for raw CFA and no black-point conversion.

after converting all your CR2 to fits, load the fits files in ImageIntegration. you can follow the settings advice given here: http://pixinsight.com/tutorials/master-frames/en.html

you have to get the CR2 files into FITS format before integration because II needs to seek within the files in a certain way that's not possible with CR2.

if you want to make a calibrated master dark, instead of BatchFormatConversion you can use ImageCalibration to subtract a master bias from each dark sub. but then of course you have to make the master bias using the recipe above.

rob

[kerrywaz1]

Thanks. I found the problem. I had DSLR_RAW set for "Create RAW Bayer image" rather than "Create RAW Bayer CFA image".

--- Kerry