Selection skills of Huawei's mobile phone metering mode

In recent years, Huawei has made remarkable progress in camera technology. Since the cooperation with Leica, the camera effect of the launched mobile phone has been stronger from generation to generation. Many people who like photography have gradually become "pollen". With the powerful function of photography, the frequency of camera use seems to be declining. There has always been a saying in the photography circle that the camera you can take out is a good camera, and the mobile phone is the "culprit". Although the ordinary camera mode of Huawei mobile phone is excellent enough, under certain environmental conditions, using Huawei's professional mode can also shoot large films in minutes. Today, let Xiaohe tell you how to play the professional mode of Huawei mobile photography!

After watching the video, did you understand the knowledge points of shooting in professional mode? To put it bluntly, it is how to manually control exposure, focusing and metering in professional mode to achieve the picture you want. If you still don't understand, Xiaohe will give you a more detailed answer below.

measure

Photometry is to get the correct exposure of photos. Different metering methods will bring different effects to the picture. Huawei's professional models are: matrix metering, central button metering and point metering.

Matrix photometry, a photometry method, averages the light intensity of the whole picture to get the average light. Suitable for scenes where the contrast between light and shade is not obvious.

Center-focused photometry is a photometry method for measuring the central area of the picture, which is suitable for the situation that the subject is in the middle of the picture. For example, you can choose this metering method when shooting faces.

▲ Spot light the sky.

Spot metering is a very accurate metering mode. Spot metering will measure a very small area in the center of the picture in order to obtain more accurate exposure data. This metering method is suitable for stage, silhouette, etc.

Sensitivity ISO

ISO sensitivity is a numerical value indicating sensitivity to brightness. The higher the ISO value, the higher the light input, which is suitable for night shooting, but the more noise there will be. The lower the ISO value, the less light the camera enters, and the photos taken are fine and of high quality, which is suitable for shooting scenes with plenty of sunshine during the day.

In the case of sufficient light, ISO usually defaults to the lowest sensitivity. In the case of shooting night scenes, usually ISO will automatically improve, and at the same time it will bring more noise in the picture.

If you want to ensure the purity of the picture, reduce the ISO as much as possible when shooting at night, and adjust the shutter speed to a stable value (or use a tripod).

Generally speaking, the anti-shake algorithm of mobile phone allows you to adjust the shutter speed to 1/30 seconds, and can also take a relatively stable picture. Of course, it all depends on what you want to shoot.

So you will understand that in recent years, the ability of major mobile phone manufacturers to promote night scene shooting is a great publicity for mobile phone photosensitive devices and shooting algorithms.

Shutter speed s

Shutter is a device used by the camera to control the effective exposure time of the photosensitive element, in seconds.

▲ Left: low-speed shutter right: high-speed shutter

Lowering the shutter speed is generally used to take photos of moving tracks, such as traffic and streams. Xiaohe suggests that you use a tripod when using a low-speed shutter, otherwise the image quality will be affected by slight hand shake (using timed shooting can avoid the jitter of click shooting). Increasing the shutter speed is usually used to capture the moment of motion. For example, various sports, birds flapping their wings and so on.

Exposure compensation EV

Exposure refers to the process that the light emitted or reflected by the photographed object is projected onto the photosensitive film through the lens to produce an image. EV exposure compensation is actually a method to control exposure. Before using exposure compensation, you need to set ISO to automatic file (A).

▲ Left: overexposure: normal exposure; Right: Underexposed.

If the picture is too bright, you can lower the exposure value-1, -2, -3,-4; If the picture is too dark, you can increase the exposure value by+1, +2, +3, +4, and so on.

Diagonal atrioventricular

Generally speaking, focusing is to make your subject clear. Huawei's professional model focuses on AF-S, AF-C and MF.

AF-S (single autofocus), the camera's autofocus system will stop working every time the camera finishes focusing. You can choose this focusing mode when you want to make a new composition every time you take a photo. AF-S is mainly suitable for taking scenery photos and still life photos.