1.Standard Viewfinder Mode :

In this mode the main mirror will be in its normal position, but light will pass through it to a sub-mirror, which will in turn reflect down to the phase-difference AF sensor.

標準取景模式 ：
在此模式的主反光鏡將位於正常位置，光將通過副反光鏡，反映到相位差自動對焦感應器。

2. Fast AF Live View Mode (shown in the top image):

The smaller sub-mirror will move out of the way and the main mirror will rotate to a different angle to take advantage of its translucent properties, which will allow light to pass through to the image sensor, while at the same time reflecting a portion of the light to the phase-difference AF sensor. This is what we all want - fast, accurate autofocus during Live View.

快速自動對焦實時查看模式 （顯示在上方圖片） ：
將較小的副反光鏡移出光路並將主反光鏡將轉到一個不同的角度，利用其半透明的特性，允許光線通過到達COMS，同時反映了部分光的相位差自動對焦感應器。

這就是我們大家都希望的-快速，準確自動的自動對焦。


3. Full Live View Mode :
Both mirrors are rotated/retracted out of the sensor path to allow full exposure of the sensor while observing Live View. This will likely come into play when shooting video or when zooming in during macro or still life shooting for critical manual focus.

全實時查看模式 ：
主副反光鏡都移出光路之外，使CMOS充分受光，同時開啟觀察LIVEVIEW。可以用來錄影或是微距攝影時放大對焦點檢視是否正確合焦也課用於生態攝影時的手動對焦