Don't have an URL for my pictures, and don't know how to add image to this thread in some other way, but uploaded "My first pinhole image" to the groups image album: my caravan (and car) through the window of my studio.
It was taken with my Hasselblad 500C, July 2006; I drilled a hole in the camera cap and taped a piece of aluminium folio with a little hole made with a needle.
Film TMY, developed in FX39 (1+9 22°C 9 min). Had really no idéa what kind of apperture this hole made, thus how to expose; made the following exposures: 5 min, 10 min, 20 min, 5 sec, 1 min. It turned out that the 5 sec exposure was the right one. In view of the light situation I regard this hole to be something like apperture 180/256, the distance from the hole to the film plane is roughly 80mm, and thus makes a normal "lens" for 6x6 which seems quite ok i view of the picture - it looks as I would expect it to look if taken with my Planar 80mm.
In fact this series of exposures are the only made with this "lens", later my pinhole experience is with my NOON for 4x5 which I like very much (some time ago I uploaded some of these in the APUG Standard Gallery)
/Bertil