Missed opportunities are a photographer's nightmare -- especially when faced with the once-in-a-lifetime sights of a trip away from home. Whether it's the horde of tourists crowding that brilliant shot of the cathedral, the charming old man who refuses to give a smile, or the safari that results in a few too many pictures of empty sky, travel photography can be daunting for both beginners and the experienced alike. In The Traveler's Eye, Lisl Dennis...