Used for testing white balance, with a reflectivity of over 80%.

White Balance refers to the restoration of white objects by a camera. When we observe this vast world with the naked eye, the feeling of the same color is basically the same under different lighting conditions. For example, when the morning sun rises, we look at a white object and feel that it is white; And under the dim lights at night, the white objects we see still feel white. This is because during the process of human growth from birth, the human brain has adapted to the color reproduction of objects under different lighting conditions. However, as a camera, it does not have the adaptability of the human eye. Under different lighting conditions, the imbalance of CCD output can cause color distortion in the camera, such as bluish or reddish images.

The DNP white balance test card is mainly used to test the restoration ability of white objects in various stray light environments.

Testing tools: DxO Analyzer, DNP White Balance Test Card

Test conditions

1. The lens must use the maximum aperture.
2. It is necessary to take a set of color palette samples under white light and warm light respectively, and use a Lux sensor to read out the brightness of the testing environment.

testing procedure

1. Take a set of color palette samples under white light and warm light respectively.
2. Open the color palette image using DxO Analyzer and follow the "Color Restoration" test steps to drag and select the color chart test area with the mouse.
3. Analyze data and save analysis results.

Testing standards

The largest color block is the original photographic image block, and the smallest area color block is the ideal value of the original white balance.

Completion Criteria

1. Record the brightness of various shooting environments.
2. Compare the original captured soil blocks with the ideal color blocks, and record the white balance effect in combination with the actual captured images.