Skills of using Nikon d80

As for the three metering modes of D80, in the full manual mode, the 3D matrix color metering is used first, and then the exposure is adjusted. After the bottom line in the viewfinder is displayed normally, do not move the camera or focus, and turn to the center key to measure light. You will find that the exposure index of the bottom line in the viewfinder is shifted to the left by 1-2 (the exposure index is calculated by the camera default 1/3EV). That is to say, with the same focal length and the same luminous flux, under the same circumstances, the central key photometry will be less exposed by 1-2 units than the 3D matrix photometry. Continue the above operation, and then adjust to spot metering, and the exposure index of viewfinder bottom line will move to the left 1-2, which shows that spot metering will be more important than central metering.

The above data are measured normally by the camera with the same aperture and stable shutter. It's easy for everyone to test by themselves. The above description shows that in most cases, matrix photometry takes care of the exposure index of most scenes of about 75%, just as the exposure difference of small DC will not be too much, so many friends say that there is no problem of inaccurate exposure of small DC. In fact, small DC is based on this exposure. To be on the safe side, you won't owe it. The exposure rate is very high at this time. Generally, it will not be underexposed, and in some cases it will be overexposed. But if you adjust the exposure at this time, you will definitely use a slower shutter or need a larger aperture than the central focus and spot metering. For key metering, it will be underexposed 1-2 level 1/3EV compared with matrix metering, and so on, spot metering will be underexposed 1-2 level 1/ev compared with central key metering. . . But basically, the central focus is accurate exposure, so it is suitable for measuring key parts of portraits, such as face and eyes.

Spot metering is basically based on a certain stippling 2. 5-3% of them are used for photometry, which is suitable for close-ups, macro and other photometry that requires creative photography, and the photometry mode that experienced photographers like, because the contrast effect between light and dark can be adjusted later, or the background is pure black and white. For example, when I shoot the macro of the lotus and the spotlight hits the petals of the white lotus, no matter what the background is, I will adjust the light contrast on the computer later. After the film comes out, the background of the lotus is generally black and clean. If I take a silhouette of sunrise and sunset, the spotlight will be on a bright halo, and the background of people and buildings will be black, which also achieves the effect of silhouette. Where's little DC There is basically no spot metering, and even if there is, it is not very sound.