The HTC One M8 comes with variety of settings and options to help you take some great pictures. There is a great feature which lets you save custom camera settings, you have created for different situations and you can easily use them afterward.
To save camera settings, do as follows:
1. Make sure you have fully customized the settings and options
2. Now on the Camera app, tap the 3dot icon, and then the Gear icon
3. Scroll down and touch Save as Camera
4. Choose a name for your custom settings, and press the Save button
To use your saved settings, touch the Camera Mode icon (left to the shutter icon in the portrait mode), swipe right, and there you should see the list of saved camera settings