White balance (WB) is the process of removing unrealistic colour casts, so that objects which appear white in person appears white in your photo. Camera white balance has to take into account the “colour temperature” of a light source, which refers to the appropriate warmth or coolness of white light.
Each light source has its own colour or colour temperature, it varies from red to blue. Candles, light source or bulbs, appear in the warm section. Anything that is flash or blue sky, is the colder colour. Colour temperature is recorded in Kelvin, the unit of the temperature. Cool colours like blue and white generally have colour temperatures over 7000K, warmer colours like red and orange are around the 2000K mark.
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The white balance function changes the colour balance in the pictures, which makes it warmer or cooler depending on how the sort of light used affects the pictures once taken.
This is Auto White Balance, as you can see, it makes sure the colours are balanced. Because this is an exterior, the temperature in Kelvin would be 10,000K, so the auto white balance would balance the colour to make it around 5,000K.
This is the function daylight. In Daylight the temperature is around 8,000K. So to balance it out, more red would have to be used.
The function for this photo is Shade. The shade function would usually have a yellowy colour, so to balance it, there would be blue.
The function used for this is Cloudy. So the detail of the colour is more apparent. This is the only change in contrast to the other functions.
Tungsten function is very different as we can see. We can see the colour blue. Because in an exterior place, the colour would be blue at low Kelvin degrees.
This is fluorescent. The colour of the picture is much darker than tangsten. So the colour would be colder.
I have noticed from these photos that White Balance, Daylight, Cloudy and Shade creates the best, and most clear picture, as the colours are well balanced. Fluorescent and Tungsten are the ones which appears blue, because they are not meant to be for exterior.
As this is interior, the balance of colours will be different from the exterior. But with white balance, it is also very effective inside as well.
For this one with daylight, the photo is clear and the colours are balanced,
This photo was taken with the function Cloudy, although there is not much of a difference because this was taken inside.
This was taken with the Tungsten function, and we can see that it is blue, just like the other photo.
Fluorescent is not as effective inside as there is already light behind it. Although it is meant to be blue if we look at the Kelvin Scale.
Shade is also one that does not balance the colours properly as it is better outside than inside. The dominant colour is yellow/orange.
I have noticed this time that all the pictures are auite similar in terms of colour balancing apart from the fluorescent and shade in difference to the exterior and interior. The Shade function indoors is warmer than outdoors.
Interior and Exterior (Mixed)
This photo was taken inside, using the light from outside. The same information applies with the 2 other photos of Auto White Balance, the colours are balanced to give clear detail.
Daylight is used, and we can see that it is a bit darker than the Auto White Balance as it is taken from inside.
This is taken using shade. The colour is yellow.
The function used for this is Cloudy. There is not much of a difference between this one and the Daylight Function in exterior and interior.
Tungsten function was used for this and the colour is blue this time because it was taken from inside mixing with the light from outside.
The last function for this type of shot is Fluorescent. The colour is less blue than the other one, but is still blue as it does not work as well inside.
I have noticed that the photos get bluer because some of the functions work better and balance the colours more correctly than Fluorescent and Tungsten.
The best place to take photos with all the functions is the interior because although the colours are warm for some functions, it does not become as warm as we would expect, so the colour would still have some its colours without the red.
Light is part of the electromagnetic spectrum known as a wave. Each colour has different frequencies. The higher the frequency the shorter the wavelength. Red has the lowest frequency, Violet has the highest frequency.
3 Point Light are the 3 different types of light used in different directions to illuminate the person and to control the shade on the person.
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This light goes on the side, it is the main light used in media to illuminate a person. It is the strongest one of the 3.
This is the secondary light used. Whenever there is a shadow on one side of the face for example, the fill light will fill those shadows to have a fully clear picture.
Backlight adds a rim around the side of the subject which separates the subject from background and it adds dimension to the shot.
In this lesson, we learned about light within the electromagnetic spectrum. We also learned about the different light, Key Light, Fill Light and Back Light. After that, we had to know how to use a reflector which would affect the shade depending where we are taking the photo and the position of the light. We had to use a reflector which affects the light’s reflection on the person, it goes from gold, to silver, black and white.
Conclusion of the task
From all the photos in the interior and exterior, we can clearly see that the Gold was the most effective as a fill light. It reflected the light very well to fill the shadows, giving a clear photo to see the whole face. The ones which did not work as well was the white reflector and the black reflector of course. The reflector with white reflected some of the light onto Kyle’s face. Black was the least effective as black does not reflect any light, it absorbs it.
Cambridge in Colours, No Date, Available at:www.cambridgeincolour.com/tutorials/white–balance.htm, Accessed on 26/10/2016
Digital Camera World, No Date, Available at: http://media.digitalcameraworld.com/wp-content/uploads/sites/123/2012/05/Free_colour_temperature_scale_photography_cheat_sheet.jpeg, Accessed on 26/09/2016
HSCMBS, No date, Available at:https://hscmsbs.wikispaces.com/Lighting, Accessed on 17/09/2016
Media College, No date, Available At: http://www.mediacollege.com/lighting/three-point/, Accessed on 26/09/2016
We Are Incredible, No Date, Available at:http://www.weareincredible.com/wp-content/uploads/2011/06/rulethirds2.png, Accessed on 17/10/2016