The primary controls are always accessible when you are filming and can be directly manipulated from either the standard or full screen interface. These are controls you will use all the time. Any primary or secondary controls can be changed while you are recording.
The exposure and focus controls are two of the main controls used within MAVIS. Both are located within the viewfinder. The left control changes exposure, the right control changes focus.
Exposure - To change the exposure slide the left controller up or down. Sliding the controller up increases the exposure and sliding it down decreases the exposure. The exposure control changes the digital ISO of the camera. All iPhones have fixed apertures which cannot be changed and we therefore use ISO as the main exposure variable. The exposure control should be used in conjunction with the shutter speed control to ensure the correct amount of light is being exposed onto the camera sensor.
Focus - To change the focus slide the right controller up or down. Sliding the controller up allows you to focus on objects that are far away from the camera and sliding it down allows you to focus on objects that are close to the camera.
By default the Exposure and Focus controls are in grab mode. Grab mode automatically puts the control into manual if it is moved, or “grabbed”.
Tapping the AUTO button under the exposure controller enables automatic exposure whereby both ISO and shutter speed will be changed automatically by the software.
Tapping the AUTO button under the focus controller enables automatic focusing.
The record button can be found at the bottom right of the interface. It starts and stops recordings.
The fullscreen toggle can be found at the bottom left of the interface. Tapping on this control puts MAVIS in/out of fullscreen mode. You can enter fullscreen mode at any point - even while you are recording.