I am trying to do a linearization for Hahnemuhla Platinum Rag Paper, and chose 450 seconds as the standard printing time for getting maximum black (FYI, i did quite a lot of test on this and assure that 450 seconds is the right timing).
Then i printed IJM curve to print the 129 patches for linearization purpose. And the final result seems the highlight and shadow going down quite a lot and it seems it is almost not possible to get close to a 45 degree Slope curve. Please refer to attachment.
If my goal is to do a perfect linearization, what should i do…? I do keep control on all my process including sensitizer amount, brushing method, developing and clearing process.