Before the content begins to explain one point: the camera’s metering will automatically start meight when you turn the camera, remove the lens cover, do not need you to open it manually, you have to do just the choice of metering mode And the choice of metering point.
The metering and auto focus of the general camera is together, as long as you don’t go to people, you are melting when you press the shutter to focus.
First, what is melody
Our eyes have visual nerves, which can be reflected by the object to the light of the light, thereby judgeting a picture or an object is bright or dark.
However, the camera is not working, the camera has no visual nerve. In order to make the camera to determine the screen, the object is dark, give the camera a metering function. Through the metering function, the camera can determine the brightness of the picture.
When you adjust the diameters such as aperture, shutter, and sensitivity, half press the shutter, can see the results of the metering or dark by the viewfinder or real-time viewing.
In addition, everyone can also match the measuring scale, which is more accurate to the exposure of the exposure, and no exposure or too dark.
The scale of the scale indicates that the current parameter is not bright, and the right is to be high, and the left is Dar.
Second, what are the metering modes?
The metering mode mainly: Evaluation Metering (Nikon Matrix Metering, Sony is Multiple Meansing, is the same below, directly said to evaluate metering), spot measurement, local metering, central focus, etc. .
1 evaluation metering
This is the most measurement mode we used, and the camera default metering is to evaluate the metering mode. The principle of this mode is to divide the screen into multiple regions; each region is independently metering, and then the metering average of the entire screen is calculated. The overall light is relatively uniform in the range of view, and the darkness of the entire picture will not be too large, the photo exposure is basically accurate.
Just like the picture below this cuts the picture into a small piece of small piece, independent metering is performed, and the photos taken so that the exposure is uniform, relatively accurate.
Evaluation Metering is the most measurement mode used, in general, 70% of shooting theme can be taken by evaluating metering. If you don’t have a special needs, you will take this mode to shoot.
2 point measurement
As the name, the “point”, which is the “point” that we often say is that the “point” of spot measuring is generally referring to the area of 1% -5% of the viewing range, which is usually the same as the focus. Location.
When I lid the camera, because the camera cover is black, the camera’s test system will think that the picture is very dark, it will brighten to shoot, and the entire screen will be high.
When I metering out of the window, because this is very bright, the camera metering system will think that the picture is high, and the exposure will be photographed, and the shot is too dark.
Point measurement is very helpful in large-spot contrast conditions or we want to increase comparison, shooting silhouettes. For example, if you use the evaluation of the metering sky, the details of the sunset are not present.
However, with the point metering, the light is melted, the detail of the sky can be retained, and a beautiful silhouette photo is photographed.
The following photo is used to take the evaluation of metering, so the picture that is taken is normal, and it is not bright.
Below this photo is changed to spot melody, spotlights. This will embody the background, so I take a dark tone background photo. Yes, dark tone background photo is like this.
3 Central Key Means
The center-hearted metering surface of the lightweight is about 20% -30% of the viewing screen, and the other area of the screen is given a average measurement according to the luminance in the center of the screen. This kind of test mode emphasizes the idea of the most important and peripherals in the middle.
This model is small, because it is melted by the object in the center of the picture, if my picture main body is not in the center of the picture, such as the picture below, the model is not in the center of the screen, then this test mode is not.
If you use a point metering to melt the model face, the details of the characters are kept, but they will expose them outside the window.
At this time, it will be better with the evaluation test, which can keep the details of the model face, and the details outside the window can also be retained. In the late stage, the model face is lit and the window is smashed out.
Summary: Almost is these content, the specific family is more practice.