Sony DSLR A700H User's Guide - Page 50

(Spot) The camera uses the spot AF area exclusively. Spot AF area (Local) Choose a local AF area from the 11 areas. Select a local AF area that you want to activate the focus with the multi-selector. Press the center of the multi-selector to use the spot AF area in focusing. Local AF area Spot AF area • After shooting, area selection is still available. Be sure not to move the multi-selector unless it is necessary. • The local AF area that was used to focus on is illuminated briefly. • The local AF area may not be illuminated when continuous shooting is performed or when the shutter button is pressed all the way down without pause. Subjects that may require special focusing: Using the auto focus, it is hard to focus on the following subjects. In such cases, use the focus lock shooting feature (page 51) or manual focus (page 53). - A subject that is low in contrast, such as blue sky or a white wall. - Two subjects at different distances overlapping in the AF area. - A subject that is composed of repeating patterns, such as the facade of a building. - A subject that is very bright or glittering, such as the sun, the body of an automobile, or the surface of water. To measure the exact distance to the subject The mark located on the top of the camera shows the location of the image sensor*. When you measure the exact distance between the camera and the subject, refer to the position of the horizontal line. * The image sensor is the part of the camera that acts as the film. 50