Questions tagged “gray card”

Ask the Unique Photo creator community — gear, technique, post-processing and more.

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364

Why do gray and white cards give different white balance readings in Camera Raw?

lighting camera-raw white-balance color-management gray-card

nbonneel

1y ago

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276

How should I use gray and white cards in GIMP to set white balance for artwork reproduction?

white-balance color-management gimp gray-card art-reproduction

BayouBoyArts

2y ago

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269

How does an incident light meter determine exposure compared with a reflective meter?

light-meter incident-metering gray-card reflective-metering exposure

Photography Stack Exchange contributor

3y ago

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242

Does evaluative metering aim for 18% gray in digital cameras?

matrix-metering evaluative-metering gray-card metering exposure

Photography Stack Exchange contributor

4y ago

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395

What RAW/linear RGB value should an 18% gray card have with correct exposure?

linear-rgb gray-card raw digital-photography exposure

Photography Stack Exchange contributor

4y ago

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196

Can a phone screen be used as a gray or white card for custom white balance?

white-balance video nikon-d5300 color-management gray-card

Photography Stack Exchange contributor

6y ago

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199

How can I use a gray scale card to set exposure and black/white points in RawTherapee?

white-balance post-processing rawtherapee gray-card exposure

Photography Stack Exchange contributor

6y ago

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918

Where can I find X-Rite ColorChecker Classic patch values, and which patch is the 18% gray reference?

calibration colorchecker color-management x-rite gray-card

Photography Stack Exchange contributor

7y ago

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198

Can I estimate an LED bulb’s color temperature from a photo?

lighting white-balance led-lighting color-temperature gray-card

Photography Stack Exchange contributor

7y ago

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222

How do RGB values on a QPcard 201 gray patch translate to percent gray?

scientific-photography calibration color-management qpcard gray-card

Photography Stack Exchange contributor

7y ago

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197

Why does auto exposure make white and black cards look gray?

gray-card metering auto-mode camera-basics exposure

Photography Stack Exchange contributor

8y ago

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143

How should I use a gray card for white balance when shooting a storefront from across the street?

cityscape white-balance gray-card storefront-photography exposure

Photography Stack Exchange contributor

8y ago

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168

Why isn’t there a single reference white-balance equation for perfectly accurate color?

colorchecker white-balance color-management gray-card raw-processing

Photography Stack Exchange contributor

8y ago

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200

How can I use a gray reference card to set white balance and brightness for scientific RAW color analysis?

scientific-imaging white-balance color-management gray-card raw

Photography Stack Exchange contributor

8y ago

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223

How does Lightroom’s gray-card white balance work, and why doesn’t subtracting RGB from 128 match it?

white-balance post-processing lightroom color-management gray-card

Photography Stack Exchange contributor

9y ago

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277

Can a paint store match 18% gray for a photography studio wall?

paint color-management gray-card studio

Photography Stack Exchange contributor

9y ago

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294

Why does a gray card white balance make my photos look too warm?

white-balance lightroom color-management gray-card flash

Photography Stack Exchange contributor

10y ago

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273

Why do some gray card sets include white and black cards too?

white-balance color-management histogram gray-card exposure

Photography Stack Exchange contributor

10y ago

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155

Are white plastic white-balance cards reliably neutral, or can they have a color cast?

white-balance color-accuracy color-management gray-card accessories

Photography Stack Exchange contributor

10y ago

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192

How can I white-balance using white, gray, and black reference cards mathematically?

white-balance post-processing color-management gray-card raw

Photography Stack Exchange contributor

10y ago

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