HTC One M8 for Windows - Manual (Page 124)

Select a white balance setting that matches your current lighting
environment.
Apply photo or video filters.
Modify basic and advanced camera settings.
Zooming
§ Before taking a photo or video, slide two fingers apart to zoom in
or together to zoom out.
§ When you're recording video, you can freely zoom in or out while
recording.
Switching between the front and main camera
On the Viewfinder screen, do any of the following:
§ Pull from the top or bottom edge in landscape view.
§ Pull from the left or right edge in portrait view.
§ Tap , and then tap or .
Some camera features are not available when you’re using the
front camera, such as zooming.
124 Camera