Nikon COOLPIX S810c Product Manual - Page 159

A Metered Area In spot metering, exposure will be locked at the value metered in a 4-mm (0.16 in.) circle centered on the selected focus point. In centerweighted metering, exposure will be locked at the value metered in a 12-mm circle in the center of the viewfinder. A Adjusting Shutter Speed and Aperture While exposure lock is in effect, the following settings can be adjusted without altering the metered value for exposure: Exposure mode e f g Setting Shutter speed and aperture (flexible program; 0 127) Shutter speed Aperture The new values can be confirmed in the viewfinder and top control panel. Note that the metering method can not be changed while exposure lock is in effect. A See Also If On is selected for Custom Setting c1 (Shutter-release button AE-L, 0 324), exposure will lock when the shutter-release button is pressed halfway. For information on changing the role of the center of the subselector, see Custom Setting f6 (Assign sub-selector center, 0 342). Z 137