wrote in message
ps.com...
Some of the soft ware routines, (i.e. Max DL or AIP4WIN?) alow you
to measure the statistics in a specific and controlled region of the
image. Pick a region of the dark sky and measure the std. dev. Hope
this helps.


Can Photoshop show noise statistics? I can see how a certain level of noise
in the form of a number could be beneficial for printing purposes.

Jason