Finally it worked Pinhole and Infrared.
Some of you already know I am trying for a while to combine Pinhole and Infrared photography. Without any succes, considering the IR effect. The Pics themselves were quite OK. Anyway I finally succeeded in getting Pinhole and IR effect.
It’s defenitely more IR than my previous attempts :
The trick was simple: much longer exposure times, 3 to 5 minutes !