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A4 size 18 percent gray balance card rectangular matte finish

Calibrite

Calibrite ColorChecker Gray Balance Card 8.5x11" 18% #CCGB

SKU CH-YEP9-VZBZ0

An 8.5x11 inch 18% gray balance card for precise exposure metering and custom white balance in photo and video workflows

  • Precise exposure metering with 18% gray reference
  • Spectrally neutral surface reflects equal RGB in all light
  • Full-sized A4 target matches ColorChecker Classic dimensions
  • Sets custom white balance for accurate colour capture
  • Suitable for photo, video and traditional film workflows

8.5x11" 18% Gray Balance Target

The Calibrite ColorChecker Gray Balance Card is a full sized 18% gray reference target measuring 8.5 by 11 inches. It provides a spectrally neutral surface that reflects equal amounts of red, blue and green under any lighting condition. Photographers and videographers use it to set precise exposure and custom white balance in camera. The card matches the dimensions of the standard 24 patch ColorChecker Classic at 215.9 by 279.4mm.

Portable A4 Reference for Metering

This card fits into a gear bag as a portable A4 sized tool for reflective spot metering. It requires only a camera with a built in reflective meter or a handheld meter to determine accurate exposure values. By placing the card in the scene lighting, users can adjust camera sensitivity to match ambient conditions precisely. It frees the shooter from relying on automated metering modes that can be fooled by high contrast subjects.

Consistent Neutrality Under Sustained Use

The scientifically engineered gray surface maintains spectral neutrality across extended shooting sessions and varying light sources. Unlike improvised references, the calibrated 18% reflectance does not shift when moved between daylight, tungsten or mixed lighting environments. The rigid construction resists bending that could create uneven illumination across the target. It serves as a reliable constant for exposure verification from capture through to editing workflows.

Highlights

  • Precise exposure metering with 18% gray reference
  • Spectrally neutral surface reflects equal RGB in all light
  • Full-sized A4 target matches ColorChecker Classic dimensions
  • Sets custom white balance for accurate colour capture
  • Suitable for photo, video and traditional film workflows

Specifications

No published specifications for this item yet.

Questions about this item

How large is the 18% gray surface for spot metering?

The card measures 215.9 x 279.4 mm, matching the full-sized ColorChecker Classic target and providing a large, uniform area for reflective spot metering.

Does the card generate heat or noise during extended studio sessions?

It is a passive, non-electronic target with no power draw, so it produces no heat or noise regardless of how long it is used under lights.

What camera feature is required to use this card for custom white balance?

Your camera must support a custom or manual white-balance setting that can read a neutral 18% gray reference under the scene lighting.

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