Just wanted to make you all aware, if you weren't already, that you can apply the concept of pinhole photography to a digital SLR camera with great results. I found Rebecca Leopold's work through a recent
i heart photograph post, which can be found in its original form
here. Basically, Rebecca Leopold removed the lens from her digital SLR and replaced it with a pinhole. The following is just one example, more can be found at
rebeccaleopold.com, or specifically
here.