Sorry - ignore this second posting
I've started experimenting with longer night time exposures and star trails. Currently, I have my 5D set to long exposure noise reduction. So far the maximum time I have done is 45 mins + 45 mins in camera processing although I think I could push this up to the hour mark.
Is there a way to replicate Canon's in-camera noise reduction processing in PS so I could double my current exposure times and use the battery capacity to the fullest?
Thanks,
Ross
