![]() ![]() And if you have the camera set in RAW, you simply take the picture twice, one with the reference card in the shot and one without, and after you've white-balanced the shot with the reference, you then duplicate that setting on the shot without it (i.e., use the setting synchronization feature in Lr or ACR). There are expensive tools like this, such as the WhiBal or the ColorChecker Passport. 18% gray cards can work, but knowing they're color-neutral is another thing. Possibly the only way to ensure you have something absolutely neutral in the scene is to get a white balance reference card of some kind. of course that is just my stylistic opinion but I feel like practicing and experimenting allows you to fully understand why and whats changing. I tend to like slight hues to convey a mood. I feel that this method is more helpful than "picking the perfect white balance" because often I find that I don't want that perfect balance. I sometimes pick an object or subject and use the sliders to get to my desired outcome. I started out by experimenting and figuring out which colors can be used to counteract the "incorrect" tones that were present in the original photo. When I am in photoshop or lightroom, I don't necessarily use a tool to find the exact perfect "balance". So I guess that in the end white balance is just changing the hues to achieve an ascetically pleasing tone cast over the image. For example, if you are shooting a person in daylight and want to make their skin tone more flattering, you might increase the yellows. However, it can also be used to achieve whatever tone you want. White balance is used to counteract those tones to achieve a neutral white. (There are more sources which cast different shades but you get the hang of it). Then you have a clear blue sky which has a blue tone to it. Another example is florescent light, which has a greenish white tone to it. For example, a candle has a low temperature, resulting in a redish/orange tint on the photo. You can go with auto white balance (you can always adjust later, and if you use RAW this will be lossless), or set a preset white balance based on the lighting type (tungsten, flourescent, daylight, cloudy, etc).ĭifferent sources of light have different hues that the camera picks up due to their temperature. This may be possible for some types of photography but for other types this is impractical. Then you take a custom white balance pointing at the card, marking that as neutral. So in other words, put the card in front of or next to the subject, ensuring that it's in the same light as the subject. ![]() The most reliable methodical approach is to get a gray card (18% gray, typically, so it's not normally overexposed when things like human skin isn't), and place that gray card where the subject is, so that the light that would hit the subject hits the card. So you can take a methodical approach to get "correct" white balance, but in some situations it can still look wrong - or you can adjust it until it looks right, even though technically you still have a colour cast.Īnother thing is that to a certain point, the eye forgives a colour cast (your brain corrects for it), but if you exceed that point, it starts to look quite wrong. There are also some situations where a strong colour cast is expected, and removing it would look "wrong" - for example, shooting a sunset where you expect the clouds and land to be bathed in orange, or shooting underwater where you expect everything to be a bit blue. Sometimes, however, there are multiple sources of light in a scene with different colours, so it's hard for the brain to make sense of what should look white and what should look coloured, and so there is a bit of subjectivity to the choice of how to set colour balance. Often this means, to make white things "look" white rather than to have a colour cast. White balance is used to make things "look" like they are the correct colour. Please, correct me if I'm wrong.įor the most part, that's right, but it has a subjective element to it. It makes picture like it was lightened with ideal white color light. According to my understanding white balance is procedure that removes effect of colorful lengthening. ![]()
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