How to use exposure compensation in SLR photography

How to use exposure compensation? Under what circumstances is exposure compensation used? Below I have sorted out the practical skills of exposure compensation for you. Welcome to read the reference!

Use skills of exposure compensation

What is exposure compensation?

Exposure compensation is an exposure control method, which is often used in? 2-3EV, if the ambient light source is dark, you can increase the exposure value (such as+1EV, +2EV) to highlight the clarity of the picture. Exposure compensation is automatically calculated by consciously changing cameras? Is it suitable? Exposure parameters, a shooting technique that makes photos brighter or darker. Photographers can adjust the brightness of photos according to their own ideas to create unique visual effects. Generally speaking, the camera will change the aperture value or shutter speed to adjust the exposure value.

Why do you need exposure compensation?

Because the camera photometry restores the photographed object according to the neutral gray brightness of 18%, no matter what the original brightness of the object is, it is finally displayed in a medium brightness tone. This metering mode of the camera has a great influence on the accuracy of metering, because the automatic metering system can't get the correct exposure value when shooting a large area of black and white. However, can this defect of the camera be passed? Exposure compensation? Functional compensation. Exposure compensation is a function of automatic camera exposure adjustment, and its function is to make subtle exposure adjustment according to exposure needs on the basis of automatic metering, also known as EV adjustment.

The brightness of the photo reflects the photographer's intention.

As long as it is not in special shooting environment or manual exposure shooting mode, photographers can get photos with appropriate brightness when using SLR cameras as long as they release the shutter. This is because the camera will automatically calculate the exposure value in various shooting modes, and the photographer does not need to measure the surrounding brightness to determine the appropriate exposure value (combination of aperture value, shutter speed and ISO sensitivity). Exposure compensation is automatically calculated by consciously changing cameras? Is it suitable? Exposure parameters, a shooting technique that makes photos brighter or darker.

Photographers can adjust the brightness of photos according to their own ideas and create unique visual effects. Generally speaking, the camera will change the aperture value or shutter speed to adjust the exposure value. When the shooting mode is the aperture priority automatic exposure mode (Av), the shutter speed is changed, while in the shutter priority automatic exposure mode (Tv), the aperture value is changed. In addition, in programmed automatic exposure mode (P), the camera can skillfully change the combination of aperture value and shutter speed according to the surrounding brightness to adjust the exposure.

How to use exposure compensation correctly?

What is the principle of using exposure compensation? White plus black minus? That is, when shooting a large area of white, the exposure compensation increases, and when shooting a large area of black, the exposure compensation decreases. ? White plus black minus? In fact, it is the basic principle of correct exposure under different scenes and different lighting conditions.

Tips:

When shooting snow scenes, fog scenes and other white backgrounds, the exposure value should be increased or decreased according to the exposure compensation principle of white plus black minus. Generally, it is best to compensate+1 or+1.5 for shooting snow scenes, otherwise the snow in the picture is not white, and it is likely to turn gray due to insufficient exposure; It is best to compensate 0.5 or+1 for fog shooting, otherwise the fog may be dark and the effect is not ideal.

Application of exposure compensation principle in portrait photography

Exposure compensation should not only choose the correct value, but also adjust the brightness to obtain a good overall image effect. Therefore, it is a skill to give priority to the image effect that the photographer wants to present.

Usually, women's skin is fair even without makeup, so the camera's automatic mode shooting may be dark. At this time, positive compensation can be carried out to make the skin bright, and positive exposure compensation can make the spots and wrinkles on the face inconspicuous and the cosmetic effect more prominent. On the contrary, when shooting a man, you can make a little negative compensation, which can make people look more determined. In addition, when shooting a backlit portrait, if the background includes a large area of sky, water and other high-brightness objects, the contrast can also be improved by positive compensation, otherwise the detail presentation of the main characters will be affected. Even if the image processing software is used to improve the characters later, the quality of the photos will be affected by obvious noise.