Have any of you experimented with pin hole photography? I took a friends 2.8 portrait lens and took it apart o I could add a Pinhole. It was made from a spiral of thin brass wire that hugs the outside edge of the lens area. the center points at the center as identified by closing the iris all the way. normally that would give you a 3/5" diameter hole. I made a 1/4" circle of shim stock brass, and put a thin notch on one side to attach it to the wire. With some fiddling, I got the bras to be centered, and it blocks the light around the iris when closed in all the way. Opening the iris allows you to aim your camera. Finally you use the smallest twist drill you can find, and drill a teeny hole in the center of the brass circle. I used a 00-110 for mine. The smaller the hole the sharper the photos are, and the more minutes you will need to expose the film... The best is that the pin hole has infinite depth of field. The worst is the amount of light required for even 1000 speed fuji film, which can be minutes.