How to choose the 550D metering mode

Differences between several metering modes 1) Evaluative metering is the standard metering mode of the EOS camera, suitable for most subjects. After detecting the subject's position in the viewfinder, brightness, background, front and rear lighting conditions, and other integrated lighting elements, the camera sets the correct exposure for the main subject.

2) Partial photometry is very effective in situations where the background is brighter than the subject due to backlighting or other reasons. Metering is heavier than in the center of the viewfinder, covering a part of the center of the viewfinder.

3) Spot metering is used to meter the subject or a specific part of the scene. Metering is heavier than in the center of the viewfinder, covering the smaller area in the center of the viewfinder.

4) The center-weighted average metering emphasizes the center of the viewfinder and then averages the entire scene.

How to choose 1. Evaluative metering: In most cases, appraisal metering can produce a substantially accurate exposure value. Therefore, it is suitable for shooting of most scenes where the brightness of the picture is relatively uniform. If you have mastered the exposure compensation, it is suitable for shooting more scenes.

2. Partial metering: Generally used for the shooting of backlights.

3, spot metering: If you do not need to control the surrounding part, the partial metering, spot metering can obtain more accurate exposure value. This will maintain the subject's correct exposure, background, etc. will be too bright or too dark, generally used for macro, close-up shooting.

4, the center of the key average metering: If you determine the surrounding part only a little consideration, you can choose the center of the key average metering. In this way, the subject is not particularly ideal, but the surrounding and background are not excessively bright or dark, and some are taken into consideration. Suitable for morning, sunset, sunset and other shooting.

The 550D's 64-bit metering system seems to be the same configuration as the 7D, which is quite good. However, the metering system is dead, and people are alive. When selecting the metering mode, it is important to note that once the scene or the desired effect does not meet the standard conditions of the metering mode, the owner is required to dry out the predicted light results. . At this time, exposure compensation is the best choice, and the plus or minus 5 wide range will satisfy the owner. In addition, during the actual shooting operation, the selection of the last three types of metering points has a great influence on the metering results (for example, when the spot metering, the coverage area reaches 4%), which must be taken when shooting. note.

In addition, in the evaluation of metering mode, press the shutter button will lock the metering result and exposure combination, the latter three modes is not the case, need the owner to press the exposure lock button will be locked, so after the selection of the three types of measurement In the light mode, the composition must be locked before moving the composition.