Seems like the latest thing in pinhole photography, is making 3 month, 6 month or even year long exposures. Several artists have recently been featured in exhibitions and articles using this technique. Check out these artists.
- “The Arc of Time” an exhibition of long-exposure photographs made with a pinhole camera by Utah photographer Matthew Allred
Six month long exposures made from beer cans by Matt Bigwood - And for more really interesting images, check out the Solargraphy group on flickr.
Image: CAM-A by eok.gnah, on Flickr, http://www.flickr.com/photos/eokgnah/4732579648/