I used cheap material so my cameras weren't very unstable when the wind was blowing, even with a heavy tripod. And my loading and paper negative holding in camera weren't very easy.
Now that I decided to take pinhole photography more serious I purchase a 4x5in pinhole camera and I shot my a film negative this time.
More instable camera with a sharp film negative (Delta 100) shot at ISO 400 for about 12min.
My face appear blurred because I could't stay still for the 12 minutes exposure, but as a first shot as test it is very good.
Although sharper, film negatives have reciprocity failure in long exposures. In this case the pinhole is f/248. At ISO 100 the photometer was indicating 2 seconds exposure. Adding the reciprocity failure the shoot would take from 32 minutes up to 2 hours exposure. Too long for me stay still in the streets, at busy hour, at 7ºC. So I pushed to ISO 400 to reduce the exposure time to 12 minutes.
I had also to estimate the development time since I could't find a table for Delta 100 at ISO 400, but it looks like I estimated just right.
Now I am ready for my new project with pinhole photography.