尼康相機(jī)可根據(jù)拍攝環(huán)境和對(duì)象的不同，選擇不同的自動(dòng)對(duì)焦AF區(qū)域，有單點(diǎn)AF、動(dòng)態(tài)區(qū)域AF和3D跟蹤。單點(diǎn)AF，即相機(jī)僅對(duì)所選對(duì)焦點(diǎn)上的拍攝對(duì)象對(duì)焦，適用于靜止拍攝對(duì)象。動(dòng)態(tài)區(qū)域AF，即在AF-C對(duì)焦模式下，若拍攝對(duì)象暫時(shí)偏離所選對(duì)焦點(diǎn)，相機(jī)會(huì)根據(jù)來(lái)自周?chē)鷮?duì)焦點(diǎn)的信息進(jìn)行對(duì)焦，可根據(jù)拍攝對(duì)象的運(yùn)動(dòng)速度和規(guī)律選擇不同的對(duì)焦點(diǎn)數(shù)量。3D跟蹤，即AF-C模式下，跟蹤偏離所選對(duì)焦點(diǎn)的被攝對(duì)象，并根據(jù)需要選擇新的對(duì)焦點(diǎn)，用于對(duì)不規(guī)則運(yùn)動(dòng)對(duì)象進(jìn)行迅速構(gòu)圖。endprint