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Canon T3i Experience
51
on a dramatically lit face or subject, where the proper exposure of that part of the image
is critical (see Figure 16).
Figure 16 - Singer - Use Partial Metering or Spot Metering in high-contrast situations to
meter for the area you want properly exposed (such as an area of skin tone here), then
lock exposure, focus, and recompose for the final image. Shutter speed 1/60, aperture
f/4.5, ISO 1600
Or for advanced users, Spot Metering is used to determine the exposure values of
several important parts of the scene, and then the desired exposure is determined and
manually set using Manual Exposure Mode. If you have ever read about a
photographer metering different elements of a scene in order to determine their
relationships and place them in exposure “zones,” that is related to this technique. In
this way Spot Metering Mode is used to turn your camera into a light meter, as a tool to