Dynamic Range


In photography, dynamic range is the difference between the lightest light and darkest dark which can be seen in a photo. Once your subject exceeds the camera's dynamic range, the highlights wash out to white, or the darks become black blobs.

                  White Balance - Colour Temperature

• Is a measure of a particular light source: light bulb, match, sunlight 
  calculated in Kelvin. 
• Digital cameras have settings to adapt to each lighting condition to make an image neutral in colour. Analogue film has different chemical properties to adapt to lighting conditions (tungsten, daylight).

A digital camera uses the process of white balancing or WB to adjust

the red, green and blue or colour temperature of an image to create

an accurate white. The camera will also have other colour

temperature settings based on different lighting conditions e.g:

daylight, flash, cloud, tungsten, florescent.

          PRESET WHITE BALANCE SETTINGS

1. Auto – The Auto setting helps in adjusting the white balance automatically according to the different lighting conditions, but you can try other modes to get better results.
2. Tungsten – This mode is used for light under a little bulb like tungsten, and it is often used while shooting indoors. The tungsten setting of the digital camera cools down the color temperature in photos.
3. Fluorescent – This mode is used for getting brighter and warmer shots while compensating for cool shade of fluorescent light.
4. Daylight – This mode is for the normal day light setting, while shooting outdoors. Many cameras do not have the Daylight mode.
5. Cloudy – This mode is ideal for while shooting on a cloudy day. This is because it warms up the subject and surroundings and allows you to capture better shots.
6. Flash – The flash mode is required when there is inadequate lighting available. This mode helps pick the right White Balance under low light conditions
7. Shade – A shaded location generally produces cooler or bluer pictures, hence you need to warm up the surroundings while shooting shaded objects.

End Notes: http://www.exposureguide.com/white-balance.htm