Following closely on the heels of Nikon's D3S announcement which raised the bar in low light digital photography Canon has just launched the Canon EOS 1D Mark IV which ups the ante even further by claiming the same rated ISO performance with a greater 16MP resolution in a smaller sensor (APS-H, which has a 1.3 crop factor) allowing the use of smaller and lighter lenses and reducing vignetting issues. Read more to learn what else it has to offer... Read more »