Anyone who is an experienced digital photography student will tell you that more often than not, they are using their digital SLR camera away from their home or the classroom. And while they may feel like they've got the basics of their camera down, wouldn't it be nice for them to have some sort of a reference with to take when they're on the go? ''David Busch's Compact Guide For The Canon Eos 7D'' is a portable reference guide that goes beyond the standard field guide. Featuring both the basics - lists of controls, settings, and menu commands - and so much more, including depth-of-field tables, distance charts, and recommended settings for various shooting environments. With this guide on hand students can confident in knowing they have all the information they need at their fingertips. They can just slip the book into your camera bag and go!