How to measure the light ratio in photography and how to apply the results to photography?

Category: entertainment and leisure >> camera

Problem description:

How the results are applied to photographic exposure,

In addition, how to use multiple exposures and surround exposures of digital cameras? Thank you for your answers.

Analysis:

1, the light ratio can be measured by an exposure meter (generally, people engaged in professional photography buy an exposure meter to use it).

2. Light ratio is actually contrast. To understand the application of light ratio in photography, we must first know the imaging differences between underexposure, accurate exposure and overexposure. In order to get a bright and saturated picture effect, a photo must be exposed accurately. However, when shooting, there are bright and dark scenes in the picture, so the measurement subject is generally preferred to achieve the best image effect. The imaging effect of other scenes in the picture depends on the light ratio, that is, contrast, to adjust the light distribution or fill light to achieve the desired picture effect.

3. Surround exposure is an exposure mode of digital camera. Because the mechanical photometry of a digital camera is not necessarily accurate, generally the peripheral exposure of the camera is-1, neither increasing nor decreasing,+1, and there will always be one of the three continuous shooting photos with different exposures on the exposure value result measured by the camera (or manually set by you).

Hehe, I was born in photography. If there are any shortcomings in my answer, please give me your advice.