Nikon D200 D200 User's Manual - Page 81

Adjusting Shutter Speed and Aperture While exposure lock is in effect, the following settings can be changed without altering the metered value for exposure: Exposure mode Programmed auto Shutter-priority auto Aperture-priority auto Settings Shutter speed and aperture (flexible program; 63) Shutter speed Aperture The new values can be confirmed in the viewfinder and control panel. Note that the metering method can not be changed while exposure lock is in effect (changes to metering take effect when the lock is released). Reference-Exposure Metered Area In spot metering, exposure will be locked at the value metered in a 3-mm (0.12 in.) circle centered on the selected focus area. In center-weighted metering, exposure will be locked at the value metered in an 8-mm (0.31 in.) circle at the center of the viewfinder. c1-AE Lock ( 156) If +Release Button is selected for AE Lock, exposure will lock when the shutter-release button is pressed halfway. c2-AE-L/AF-L ( 156) Depending on the option selected, the AE-L/AF-L button locks both focus and exposure (the default setting), only focus, or only exposure. Options are available for keeping exposure locked until the AE-L/AF-L button is pressed a second time, the shutter is released, or expo- sure meters turn off. 71