A Digital S.L.R. That Gives Hints on What an F-Stop Means

Like many recent digital single-lens-reflex cameras, the new Nikon D40 is considerably smaller than its corporate siblings. At $600 with a zoom lens, it is also substantially less expensive. In an attempt to distinguish itself from competitors, however, the 6.1-megapixel D40 takes a novel approach to giving photographers advice on how to use it.