Hi Rick,
I just checked the original frames & yes the stars are larger in the 1x1 RAW data.
The FWHM for the 1x1 frame is just under 6 arc seconds for most stars
& the 2x2 frame is just over 3 arc seconds ( allowing for image scale )
In scientific experiment only one variable should be changed so
you are right - it's not a fair comparison.
However - just looking at the noise it is obvious that the 1x1 frame is more noisy.
This experiment will need to be repeated to confirm.
Also - did you see the graph here?
http://www.microscopyu.com/tutorials...avafigure2.jpg
Has anyone else got some better frames that can be checked?
cheers
Allan