As for single - shot af , the dimage a2 delivers enhanced precision , even in tricky lighting conditions , with its wide 11 - point af area and advanced subject detection algorithm 而采用单格拍摄af模式时，即使照明条件不适合进行拍摄，您都能使用dimagea2的广阔11点自动对焦区以及先进的主体侦测计算方法( advancedsubjectdetectionalgorithm ) ，获得准确的对焦。
Minolta s through - the - lens ( ttl ) phase - detection system with 3 ccd sensor activated by pressing the af button or shutter - release button partway down ; auto manual - focus switchable manually ; multi - dimensional predictive focus control for moving subjects 备有3ccd感应器的美能达镜后( ttl )相位检测系统；按下自动对焦按钮或半按下快门释放按钮，可手动选择自动手动对焦。
4 - segment flash metering , average metering and local - focus - area - aligned spot metering selectable in custom function ; automatically activated by pressing the ae - lock button , af button , or the shutter - release button partway down 可在自订设定功能中选择四区域测光、平均测光、个别对焦区连重点测光；按下自动曝光锁按钮、自动对焦按钮，或半按下快门释放按钮时会自动启动
Then , when you press the shutter , 3d af compensates for shutter lag with predictive focus control . autofocusing is ultrafast so you don t miss the moment - in full - time af , focusing starts just 0 . 18 seconds after you touch the grip sensor and super fine evf 加上其超快速的自动对焦速度，让您不会错过任何精彩片段-当在全时间af模式下，一接触把手感应器和超细致evf时，只需要0
