"Brightness adjustment" refers to the action of increasing or decreasing the level of light or intensity in something, such as a screen display, photograph, or room lighting, to make it more or less bright. Full definition
The problem also seems to be amplified by the automatic brightness adjustment which at times I felt benefited from manual adjustment. (mobilegeeks.com)
It also offers brightness adjustment through its High - Key mode allowing greater control over the types of photos taken. (geekwrapped.com)
The device does do some auto colour and brightness adjustment between software screens, however, which we found to be a bit annoying. (pocket-lint.com)