HTC One M8 for Windows - Manual (Page 123)

Camera
Camera basics
Take great photos and videos with the camera, and make them more
memorable by applying a variety of filters and scenes.
Open the HTC Camera app and tap
to see all controls on the Viewfinder
screen. You can use the controls to switch capture modes, add filters, set
the flash, and more.
See a collection of camera scenes when taking photos and videos.
Choose an ISO level or set it back to Auto. Higher ISO works best in
low light conditions.
Adjust the exposure settings. Higher exposure settings capture
more light for your photos or videos.
Camera 123