Book excerpt: Simon Stafford, the Technical Editor to the Nikon Owners’ Club International’s Nikon Owner magazine, tells all about the company’s new semi-pro camera, the D300. He explains how to make the most of the model’s up-to-the-minute attributes, including the 12.3 effective megapixel Nikon DX-format CMOS image sensor with integrated A/D converter and the increased bit precision of selectable 14-bit NEF (RAW) output.