50 votes

What's it called when white objects or white backgrounds become blue in photographs?

This is called a color cast. As others have said, it is a result of an incorrect white-balance. Your camera is assuming that light is of a different color than it is and is compensating for that, ...
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  • 101k
38 votes
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Should changing the shutter speed affect the moon's color?

but why i can see little bit of orange color with shutter speed 1/400 ? My best guess is that you had the camera set to automatic white balance (AWB). In the 1/200s shot, the moon was bright enough ...
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  • 31.2k
38 votes
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Can you use a phone as grey/white card?

No, it won't work. The gray card works by reflecting ambient light (here "ambient" is used to include whatever flash, gels, etc. you're lighting your scene with other than the phone). You know it's ...
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35 votes
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How does Kelvin for color temperature relate to Kelvin for actual temperature?

It is related to a heated substance, albeit in a somewhat theoretical way. The substance is an ideal incandescent black body, which would radiate a given color within a given color space at a given ...
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31 votes

How to keep right color temperature if I edit photos with night light mode turned on?

"Night Light" or "redshift" or other night light color apps don't do anything (as far as I know) to protect your eyes. Their intended function is to protect your sleep -- blue ...
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  • 5,805
27 votes

How does Kelvin for color temperature relate to Kelvin for actual temperature?

Wikipedia's introductory statement on color temperature relates them quite well: The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of ...
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  • 31k
25 votes
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Is the white balance wrong in these field poppy pictures?

What is going on? I compared both pictures of the field (left out the one with the tractor, as it suffers from the same problem as the other over-exposed picture, IMHO) in After effects. The image ...
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  • 6,307
22 votes
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How do I accurately and objectively capture the color of the setting sun?

But there is nothing objective about perception. If the goal is to attempt to reproduce the perception, the closest will be to set the white balance from a grey card which is not directly lit with the ...
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  • 2,001
20 votes

Raw photo for scientific purpose. How to set white reference to defined numeric L*a*b value?

Sounds a bit iffy to me... A card, by itself, DOESN'T have a fixed L*a*b* colour - that's a product of the reflectivity of the card at different wavelengths and the intensity and wavelength ...
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  • 2,903
18 votes
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Why is the range for manual white balance so limited at the bottom and top?

Digital color works by separating light into three channels: red, green, and blue. This roughly mimics the way the human vision system creates the perception of color. Our vision system compensates ...
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  • 140k
18 votes

Auto white balance shifting from cooler to warmer during photo shoot

Ahhh...the "curse" of auto-white balance. I don't use AWB and ... based on reading, it seems like few photographers suggest using this feature. You did not mention a camera brand-model ... ...
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  • 3,567
18 votes
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Why does the image get bluish and not yellowish when I shift the color temperature to a lower K?

Because the color temperature that you give in photo editing is the assumed color temperature of the light source used for the original picture. With a low temperature light source the colors are ...
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  • 16.1k
17 votes

Do photographers see ambiguity in the color of the blue/black (gold/white) dress?

My monitor is calibrated (less than a month ago). I see the white/gold dress, but the highlights on the white piping have a blue tinge to me. However I have seen pics of the (supposedly) original ...
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  • 1,617
17 votes

How do I accurately and objectively capture the color of the setting sun?

As you say, white balance is a subjective game. The only way to do this in anyway objectively would be to process your photos in conditions where all the factors affecting subjectivity, i.e. the ...
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  • 1,087
17 votes

How does Kelvin for color temperature relate to Kelvin for actual temperature?

The colour temperature is related to the black-body radiation produced by hot objects. The black-body radiation curve, shown below, shows the approximate intensity* curves at each wavelength for the ...
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  • 395
17 votes
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Sunny day in the shade - how to deal with white balance and exposure settings?

This is the situation when you use fill-flash. Contrary to common belief, flash is NOT to be used in darkness. In darkness flash lights up the foreground and leaves background pitch black. Flash is ...
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  • 2,040
17 votes

Relationship between tint-temp and magenta-green-blue-amber white balance corrections?

Tint is the green-magenta axis, temperature is the blue-amber axis.
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16 votes
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How does a camera implement different white balance modes?

The camera can not alter the spectral sensitivities of the sensor, those are baked into the chip. What actually happens depends on what format your saving files in. If it's a Raw file format, what ...
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  • 1,795
16 votes

How do I get a consistent White Balance when shooting different color products?

Don't use auto white balance - choose a color temperature that looks well and stick to it (or use a gray card if the color accuracy is important) Close all the windows - the daylight color changes ...
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  • 20.5k
16 votes

Help for a film shooter: how to cope with the paradox of choice?

There's no one way. Personally I find digital frees me to defer choices until after the shot. Not only that but I can "discover" new interpretations of a scene with different crops, different toning,...
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14 votes
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How to configure the camera to capture true colors of ambient light?

The color correction is acting as expected. The point of using a color target is to adjust for the color of light to assume that the light is white. If you want to have the color that is present ...
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  • 34.4k
14 votes
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Is there a specific color temperature to film?

The color rendering of a film has to do with both color balance and the specific color response curves of the emulsion. This said, almost all the film stock produced today is daylight balanced, making ...
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14 votes
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What's it called when white objects or white backgrounds become blue in photographs?

Your camera, for whatever reason, is setting the color temperature and white balance at different points for the two images. That gives it what we often call a color cast, *tint*, or hue which simply ...
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  • 167k
13 votes

How to keep right color temperature if I edit photos with night light mode turned on?

TLDR: Turn Night Light off. Calibrate your monitor with a colorimeter. How to keep right color temperature if I edit photos with night light mode turned on? Normally, you can't because the intensity ...
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  • 26.2k
12 votes

What *exactly* is white balance?

Our eyes and brain do things on a daily basis that make LSD's effects seem relatively tame. One of the things our brains do is a color balancing activity of their own. No one knows why for certain, ...
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12 votes
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Why do my photos have an exaggerated blue hue when I shoot in manual mode?

Auto mode is auto exposure, and it also always uses auto White Balance and auto ISO, which cannot be turned off in Auto mode. Auto mode is "auto everything". The A,S,P,M modes only set exposure, but ...
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  • 12.5k
12 votes
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Raw photo for scientific purpose. How to set white reference to defined numeric L*a*b value?

This frequently comes up in photographic reproduction jobs where one is trying to closely approximate some other object such as a painting antique drawing. This cannot be done with typical photographs ...
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  • 1,207
11 votes

If, brightness → dynamic range... white balance → what?

The phenomenon you describe is called color constancy, and it is enabled partially by the human vision system's chromatic adaptation and partially by something I will describe using the scientific ...
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  • 140k
10 votes

How do I accurately capture the colour of sunlight on a wall?

In this case, you shouldn't be using a grey card at all. Grey cards (and related devices and and cards) are used as a reference point to make an image's color neutral, as your second two images show, ...
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  • 2,341
10 votes
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Why can software correct white balance more accurately for RAW files than it can with JPEGs?

Why can software correct white balance more accurately for RAW files than it can with JPEGs? There's a fundamental difference between working with the actual raw data to produce a different ...
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  • 167k

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