Did you know that April 25 is Worldwide Pinhole Photography Day? I bet you didn’t. I remember making our own pinhold cameras in high school and it’s been a long time since I’ve played with this fun little camera.

If you look it up in Wikapedia: A pinhole camera is a very simple camera with no lens and a single very small aperture. Simply explained, it is a light-proof box with a small hole in one side. Light from a scene passes through this single point and projects an inverted image on the opposite side of the box. Cameras using small apertures and the human eye in bright light both act like a pinhole camera.

Lensbaby is sponsoring an open call for photographers to submit their best pinhole images. Photographers can submit two images for consideration. The contest began March 23 and electronic submissions will be accepted until 6pm, PST, April 9, 2010. Online voting will begin on April 9th and end on April 16th. The winning images will be announced April 23rd. Check out their web site for details and happy shooting.

Want to build your own digital pinhole camera? Check out this site.