This gray card is to provide a standard reference object for exposure determination in photography. its apparent brightness (and exposure determination) therefore does not depend on its orientation relative to the light source. By placing a gray card in the scene to be photographed, oriented at a defined angle relative to the direction of the incident light, and taking a reading from it with a reflected light meter, the photographer can be assured of consistent exposures across their photographs. In addition to providing a means for measuring exposure, a gray card provides a convenient reference for white balance, or color balance, allowing the camera to compensate for the illuminant color in a scene. Gray cards can be used for in-camera white balance or post-processing white balance. Many digital cameras have a custom white balance feature. A photo of the gray card is taken and used to set white balance for a sequence of photos. For post-processing white balance, a photo of the gray card in the scene is taken, and the image processing software uses the data from the pixels in the gray card area of the photo to set the white balance point for the whole image. Many serious photographers or hobbyists consider gray cards an essential part of the digital photography process.
Features & Highlights
- 18 % grey reflector, 20x20 inch (grey area)
- Collapsible into a 8" bag
- Back side is in white color
- Easy to store and carry.
- Works with your light meter or digital camera
|Manufacturer:||Life of Photo|
|Brand:||Life of Photo|
|Publisher:||Life of Photo|
|Studio:||Life of Photo|
|Item Size:||0.24 x 22 x 22 inches|
|Package Weight:||0.5 pounds|
|Package Size:||8.4 x 1.6 x 1.6 inches|
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mpn: 10089838, ean: 0191073017498,
Descriptions:An excellent picture is produced with the precise exposure.If the light in scene is excessively bright or dark, exposure deviation might be produced.Gray card can balance all mixed lights to be 18 percent neutral gray and you'll get pre...