Quote Originally Posted by Akki14 View Post
I tried with cyanotype paper today and the results weren't so sharp. It's probably because cyanotype works based on shadows more than on anything as fast as silver gelatin paper which reacts to any light not just mostly-UV light. I use a proper contact printing frame so I'm definitely getting good contact between paper and paper.
Hi Akki14.

During the long exposure, have you moved the frame from time to time - in order to maintain the angle of incidence? Sun will take a long way in the sky in 2-3 hours, changing the angle of incidence considerably and giving you an effect similar to motion blur.