Worldwide Pinhole Photography Day 2011 is April 24th. This year, because of Easter, the event has been expanded to include any pinhole photos taken between April 23rd and May 1st.
This year I plan to use this Mamiya 645 with a pinhole cap. I have some Ilford Pan F Plus 50 ready to load. This will be my first time using the pinhole cap on the Mamiya and also the first time I have shot Pan F but I am sure everything will work out.
By the way, the photo here was taking with my Daylab Polaroid pinhole camera.
Visit http://www.pinholeday.org/ for more information.