Perfect Colours by Analyzing the Colour Cast
In previous articles, I look into Analyzing photos and changing the exposure modes to achieve better results. In this article, I am going to discuss colours and how to make better images by Analyzing the Colour Cast.
What is the Colour cast?
“A colour cast is a tint of a particular colour, usually unwanted, which affects the whole, or portion, of a photographic image evenly.
Certain types of light can cause film and digital cameras to have a colour cast. Illuminating a subject with light sources of different colour temperatures will usually cause colour cast problems in the shadows. In general, the human eye does not notice the unnatural colour, because our eyes and brains adjust and compensate for different types of light in ways that cameras cannot.”
Photographers control the brightness and contrast of the images using the Exposure. Therefore, the exposure does not have a significant role in rendering the colours.
Generally speaking, in digital photography the colour cast occurs whenever the digital camera is not familiar with the light source or the light source is too complicated for the camera. The White Balance controls the colour rendition in digital cameras. Therefore, if the White Balance is not set correctly, it can result in mild to massive Colour Cast.
Analyzing the Colour Cast
Commonly, the colour cast happens when taking photos indoors or shades. However, I have noticed that the snow and the sand can cause it as well.
By analyzing the colour cast, a photographer can make sure that the colours are as accurate as possible.
The indoor lights created a heavy colour cast in this image:
Heavy Colour Cast
Therefore, by analyzing the photo, I noticed the colour cast and removed it by post-processing. (that is for another article!)
Removing Heavy Colour Cast
I used Auto White Balance in this photo. You can see the yellow colour cast due to indoor lights.
Indoor lights create colour cast
Ergo, I switched to Fluorescent White Balance, and I was able to reduce the colour cast to the minimum.
Removing colour cast using WB Preset
Do you want to learn more?
Do you want to learn more about White Balance and Colour Cast? Register for our upcoming Digital Photography Bootcamp. A good portion of the Bootcamp is dedicated to these topics. The next Bootcamp is scheduled for June 5th. There are a few spots left.
That is all for now. Stay tuned for my next photography Tips. We love to hear from you. Let us know if you have any questions, feel free to send us your questions and we will be more than happy to answer them. Follow us on Facebook, Instagram and Twitter for more Free Tutorials and Tips.
Ted and the Omnilargess Team