The pinhole lens for my camera arrived today. As I said the other day, I posted off a body-cap to a company in Birmingham who drilled a hole in it and fixed a metal shim with a 0.3mm hole in the centre of the cap.
The instructions that came with it reckon it is about f/167.
Had a quick try tonight in the garden and I was taking pictures of 13 seconds to 30 seconds exposure. On the left is the picture taken with the camera on the right.