What are the skills for cameras to use spot metering?

Our digital camera has a lot of photometry, such as focus photometry, average photometry and so on. So, what is the spot metering mode like? The following is the relevant knowledge of spot metering that I carefully recommend for everyone, hoping to help you.

Skills of using spot metering

In terms of metering mode, your camera offers a variety of options. Including centralized key measurement, average measurement, regional measurement, multi-regional measurement and on-site measurement. Spot metering mode allows you to accurately and independently measure a small area on the selected subject. In the case of uneven light-for example, the brightness difference between the background and the main body is great-spot metering has great advantages. In this case, you can use spot metering mode to meter only the subject.

The target area of spot metering-metering point-is only 1.5% to 3% * * of the overall area of the picture. The specific scale varies from camera to camera, and the position of metering point is in the center of the screen by default. Some cameras can also automatically set the metering point as the currently enabled autofocus point, which becomes very practical when the subject deviates from the center of the picture.

The area covered by the metering point is very small, so the metering result is very accurate, so that you can accurately expose a specific location. However, there will still be problems. The metering system of the camera will expose the area where the metering point is located according to the intermediate tone, so if the actual area is dark and the metering system still determines it as the intermediate tone, the subject will be too bright or even overexposed. On the contrary, if the actual area where the metering point is located is very bright, the shooting result using spot metering will be underexposed. Therefore, it is necessary to make corresponding adjustments according to the actual situation and apply exposure compensation appropriately.

In complex light conditions with strong contrast, spot metering mode can help you to accurately expose. In this picture, we measure the center of the flower, which eliminates the adverse effect of dark background on the metering system.

To use spot metering

1. Select spot metering mode.

On most cameras, there is a metering mode selector, which is usually located at the top of the fuselage. You can select the metering mode by pressing the button or rotating the dial, and the symbol of metering is a point.

2. How to use it

Assume that the photometric point is the central focus. Aim the focus at the subject, press the shutter half to focus, and then press the shutter fully to finish shooting. If the metering point is not in the middle tone, exposure compensation should be applied appropriately.

3. The subject is not in the center of the picture

When the subject is not in the center of the picture, measure the light according to the above method. After the focus is displayed, press the automatic exposure lock button ***AE-L*** to lock the exposure setting, and then change the composition to complete shooting.

Outdoor photography taboo

First, avoid direct sunlight.

Bright sunshine provides good lighting conditions, making the scenery vivid and saturated with colors, which provides conditions for using high-speed shutters and small apertures. However, strong sunlight can also bring problems. The most prominent thing is that its dazzling light will open the eyes of the subject. At the same time, high-angle direct sunlight will also cause heavy shadows on the face of the characters and wrinkles on the panel, which will damage the image beauty of the characters. So when taking pictures outdoors, let the sun shine on the subject from the side and avoid facing the sun directly.

Second, avoid people getting too close to the colored environment.

Under strong light, the reflection of objects will be enhanced. In this case, people should try to stay away from those brightly colored scenery, such as newly painted building exterior walls, large awnings, etc., otherwise the colors of those scenery will be reflected to people, causing color cast.

Third, people standing on the concrete floor should avoid the top light when taking pictures.

Because the cement floor surface is flat and light in color, it will form strong reflection. This kind of bottom-up "footlights" will often have horrible effects and should be avoided as much as possible.

Fourth, avoid standing under a tree and taking pictures.

Light and shadow complement each other. The stronger the light, the deeper the shadow. When people stand by and take pictures of a tree, sunlight often casts leaves on people's bodies and faces, causing mottled shadows, which is not conducive to the aesthetic feeling of the picture.

Fifth, avoid ignoring the filter.

Under the cloudless blue sky in Wan Li outdoors, all places that avoid light should be covered with blue * * *; In the afterglow of dusk, all the scenery was stained with orange red. In such an environment, if you want to keep the original color of the scene, you must install the corresponding filter in front of the camera. In the former case, you can choose a reddish or amber filter, and in the latter case, you can choose a light blue filter.

Photography: AtomicZen VI. Avoid using high-speed film.

In the sunny and scorching sun, the light intensity is already very high. If high-speed film is used again, it will often force the aperture to receive a small amount, or it is impossible to use a slow shutter. All these situations will bring certain limitations to photography creation.

Seven, avoid random fill light.

In the bright sunshine, the scenery will have a strong contrast. In order to avoid excessive contrast, it is effective to use auxiliary lights for auxiliary lighting. However, to master the discretion, it is necessary to avoid the auxiliary light from being too bright, and to avoid the traces of the auxiliary light, such as the projection opposite to the main light.

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