At zerolens there are four different ways to move the camera:
1. Rotating the camera
Left Click and Drag the mouse to rotate the camera around.
2. Moving the camera
Right Click and Drag the mouse to move the camera around.
3. Zooming the camera
Zoom in by using your mouse wheel or the zoom function on your touchpad.
4. Resetting the camera
Left Click on the reset button to reset the camera to its initial position.