These are some of the photos I took after photographing my 5×7 camera. These were also taken with the f/71 Skink photon sieve that I thought was the f/110 Skink pinhole mounted on my Canon IVSb2.
The film is Agfa Copex Rapid developed in caffenol.
Below is an illustration of a zone plate and a photon sieve. The photon sieve is on the right.