Further to my query. In

Forums Imaging Converting DSLR images to FITS Further to my query. In

Roger Dymock

Further to my query. In AIP4WIN Bayer conversion settings, DeBayer, Convert Colour to Grayscale I set Red Scale=Blue Scale =0 and Green Scale =1, opened a RAW camera image and saved it as FITS. Using Measure/Statistics the max value = 15305. 

I then set Red=Blue=Green=1 and opened and saved an image as above. The max value was then given as 45915 which is 3x the 15305 obtained previously (A calibrated image has a max value of 40471.8).
Are the red, green and blue channels being added?