http://www.nikon.co.jp/main/jpn/whatsnew/2007/0823_d3_01.htm (Nikon D3) http://www.nikon-image.com/jpn/products/camera/slr/digital/d300/ (Nikon D300) http://cweb.canon.jp/newsrelease/2007-08/pr-eos1dsmk3.html (Canon EOS-1Ds MarkIII) http:/…