Through the window

Destination of Life

'To me, photography is the simultaneous recognition,
 in a fraction of a second, of the significance of an event.'

Henri Cartier-Bresson

 

White balance

White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are rendered white in your photo. Proper camera white balance has to take into account the "color temperature" of a light source, which refers to the relative warmth or coolness of white light. Our eyes are very good at judging what is white under different light sources, but digital cameras often have great difficulty with auto white balance (AWB) - and can create unsightly blue, orange, or even green color casts. Understanding digital white balance can help you avoid these color casts, thereby improving your photos under a wider range of lighting conditions.

 Color cast

 Daylight White Balance 

 Auto white balance

Certain subjects create problems for a digital camera's auto white balance — even under normal daylight conditions. One example is if the image already has an overabundance of warmth or coolness due to unique subject matter. The image below illustrates a situation where the subject is predominantly red, and so the camera mistakes this for a color cast induced by a warm light source. The camera then tries to compensate for this so that the average color of the image is closer to neutral, but in doing so it unknowingly creates a bluish color cast on the stones. Some digital cameras are more susceptible to this than others.

Automatic White Balance

Custom White Balance 

http://www.cambridgeincolour.com/tutorials/white-balance.htm 

The reason we adjust white balance is to get the colors in our images as accurate as possible.

  

Images from The Manchester College,  Fielden Campus, 5th floor

Sunday's walk

'The photograph itself doesn't interest me. I want only to capture a minute part of reality.'

Henri Cartier-Bresson