Thank you Simon. I do a very careful calibration in Pixinsight, all the linear work done before taking into photoshop and then processed there. The signal is hidden but strong , you will be able to pull that IFN out.. try and revisit it , do some real hard processing and take it past the noise level to get a feel of how far it will go.
Peter Shah - Collimation & Telescope servicing.
Visit my personal imaging website at astropix.co.uk
For Image Processing Tutorials
Contact: pete@ccdimaging.co.uk
We can supply your new high quality Newtonian or Dall Kirkham Astrograph
Peter Shah
Roboscopes Observatory Controller