Using these parameters, you can add tints that take the scene’s depth into account. For example, you can add a blue tint to your renders that gets stronger towards the horizon (aerial perspective); simulate the orange tint of the horizon on the sunset; or recreate the deep, dark cold blue of a moonlit scene. You can also simulate the orange tint of daylight film used to photograph interiors and the blue tint of interior film when it is used to photograph exteriors.
Simulating errors such as the above usually adds to the realism although, like lens flares, this is usually avoided at all costs by the professional photographer.
There are three possible states. The camera’s focus is always taken into account.
Use Ranges disabled.
Creates a tint that is close to reality.
Use Ranges enabled, Use Camera Ranges enabled.
This works in the same way as described for Distance Blur. Use a camera to help define the tint ranges.
Use Ranges enabled, Use Camera Ranges disabled.
The tint range is defined by the values Front Start, Front End, Back Start and Back End (not the camera parameters) based on the camera’s focus. This enables you to define the tint independently of the Depth of Field settings.
Depth of field limitations