Chapter 2. Controlling Exposure and Focus
You're likely anxious to begin using the advanced features of the EOS T2i/550D. Fortunately, with the T2i/550D, you can begin immediately without needing to know everything there is to know about photography and without needing a bag full of lenses and accessories. And if you are upgrading from a point-and-shoot camera, then you'll enjoy the creative freedom that the Rebel T2i/550D offers.
The first step in making pictures is choosing a shooting mode. With the T2i/550D, you can switch among automated, semiautomatic, and manual shooting modes and be assured of getting great shots in almost any situation. In this chapter, you learn about image exposure and how to modify it when you face challenging scenes and subjects, as well as how to get tack-sharp focus. You also explore choosing a drive mode based on the subjects you're shooting.
Maintaining detail in both the highlights and shadows was the key to getting a good, printable exposure in this image of an orchid. Exposure: ISO 200, f/14, 1/125 second.
Choosing a Shooting Mode
Before you begin, it's helpful to define shooting mode. A shooting mode determines the type of exposure settings that are set and whether you or the camera sets them. Exposure settings include the aperture, shutter speed, and the ISO. The T2i/550D has several automatic and semiautomatic shooting modes, as well as a manual ...
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