Mirrorless cameras are designed to be compact, but how big are they compared to DSLRs? How big are popular DSLRs compared to one another? Camera Size is a website that helps answer these types of questions. It’s a simple web app that shows you exactly how big digital cameras are compared to one another and compared to reference objects (e.g. a battery).
Here are some sample comparisons:
Sony NEX-5N vs. Fujifilm FinePix X100
Canon 7D vs. Nikon 300Ds
Canon 1D X vs. Canon Rebel T3i
The list of cameras is pretty long, but the site doesn’t cover older models at the moment. It would also be awesome if they started including lenses as well.