Quote:
Originally Posted by Peter Ward
Did you calibrate for the sensor's spectral sensitivity and filter transmission?
BTW Malin's AAO renditions, while lacking some of the dynamic range of current tech, are also red.  |
Hi Peter,
no -
I put each of all 5 stacked and registered frames into NASA FITS Liberator
to do the stretching for me.
I suppose that normalises the output due to high compression?
Did you allow for the sensor's spectral sensitivity and filter transmission?
Most sensors drop away from the peak quantum efficiency for Blue and Red.
So anyway -
I am now looking at 5 pictures of LRGB Ha
and they all have strong signal.
I think I would know if the output was wrong as
the White balance would be out?
Bright stars come out as White - usually - although
that can be from exceeding the well depth.
cheers
Allan