Canon® EOS Digital Photography Photo Workshop

2.3. TECHNOLOGIES AND FEATURES COMMON TO CANON DSLRS

Regardless of which dSLR you have or are considering, Canon has a long track record of employing consistent technologies within their dSLR lineup. Since digital photography came into its own, a defining characteristic of the progression of the industry has been the gradual addition of more and more high-end (professional) functionality to consumer models. The EOS Digital Rebel XT and the Digital Rebel XTi offer shooting modes, exposure features, speeds, and more importantly results that rival their more expensive counterparts, as evidenced in 2-4. Certainly this trend of adding advanced features at consumer-level prices is an advantage for photography enthusiasts.

NOTE

Digital images are made up of pixels, which are individual dots of information that combine in a matrix of millions to form a photograph. Zooming in on a digital image in an image-editing program reveals the pixels that fool the human eye into believing it's seeing a fluid, smooth photo. A megapixel is one million pixels, and the term is used to represent a camera's maximum resolution (for example, 6.2 megapixels). For example, the EOS-1Ds Mark III has a maximum resolution of 21.10 megapixels; its maximum RAW file produces images of 5,616 × 3,744 pixels (5,616 × 3,744 = 21,026,304 pixels, which rounds to 21.10 megapixels).

Figure 2-4. Canon's Digital Rebel XTi is quite capable of producing professional results under demanding shooting situations. Taken with ...