Written by expert photographers, Ammonite’s The Expanded Guides describe the featured camera in detail, providing a comprehensive user’s manual that includes a step-by-step guide to the camera’s basic and advanced functions and professional guidance on exposure, depth of field, and use of flash. This guide also includes advice on lenses, accessories and connection to exter Written by expert photographers, Ammonite’s The Expanded Guides describe the featured camera in detail, providing a comprehensive user’s manual that includes a step-by-step guide to the camera’s basic and advanced functions and professional guidance on exposure, depth of field, and use of flash. This guide also includes advice on lenses, accessories and connection to external devices, practical tips on lighting, macro photography and camera care, and a pull-out quick-reference guide card to the icons used on the camera's menus. Canon's Rebel T2i (EOS 550D) digital SLR offers 18Mp resolution and HD video capture, making this entry- to mid-level camera similar in specification to its high-end EOS 7D model, with a resolution greater than the 15Mp of its EOS 500D DSLR, which allows for larger prints.