ISO & White balance

ISO -  the camera's sensitivity to light. 

• The higher the ISO the more noise added to the photo.
• ISO stands for International Organization of Standardization which is the main governing body that standardizes sensitivity ratings for camera sensors.
• ISO doubles the exposure making he brightness of a photograph higher, therefore if the ISO is too high the picture will not come out as desired.

The brightness of an image depends on the 3 aspects including shutter speed, aperture and ISO. When an image is seen as dark, it can be labelled as underexposed, if too bright the image can be labelled as overexposed, however an image may be adjusted to whichever camera settings depending on the photographers desired view of the image and the details that they would like to show. This therefore means that there may not be a perfect ISO or exposure for an image and settings can always be adjusted - depending on preference. 

( Terms - an overexposed ISO means that the image would be white and the subject may be fully covered by white. Underexposed is the opposite of this and may black out any details within the photograph. )

                                                                               

White balance - 
White balance includes the colour and way in which we see things. An images source of light has different temperatures, from ( typically ) warm to cool. The colours can be adjusted to make a photo look more natural and match the photograph with what our eyes originally saw it as. This links to the idea of photography being a creative process and not capturing reality after all the settings that may have been set on a camera. Adjusting the white balance therefore adjusts the colour so that the image can look as real and close to life as possible.