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The top surface of the Sony Alpha SLT-A77 has several frequently accessed controls of its own. They are labeled in Figure 2.23:
Mode dial. Rotate this dial to switch among Scene modes and semi-automatic and manual exposure modes. You’ll find these exposure modes and options described in more detail in Chapter 4.
ISO button. This button gives you access to a menu for specifying ISO sensor sensitivity settings, from ISO 50 to ISO 16800, plus Auto and Multi Frame Noise Reduction (which makes an ISO-equivalent 25600 setting available). Some of these settings may not be available, depending on the camera’s other settings, including shooting mode and image quality. Scroll down through the list of these choices one line at a time using the up/down buttons or the front control dial. If you prefer not