Like the main application window, the Live View toolbar displays a number of cursor tools with some additional functions such as a Move Overlay option to the Pan cursor as well as a Loupe tool and appropriate settings as an option to the Zoom cursor.
Pan Cursor tool. This tool enables you to pan around the image when magnified. You can zoom to 100% by double-clicking and then you can pan the cropped area around the image.
Zoom Cursor tool. Zoom in by selecting the clicking on a specific part of an image. Press Alt-click on the image to zoom out.
White Balance Cursor Tool. Select the pipette and set a new White Balance by clicking on a white or gray area in the Live View window. This White Balance setting only applies to the Live View window image and not the captured image.
Focus Meter Tool. Initiate the Focus Meter tool using this icon.