Photographing skills of SLR A-frame How do SLR cameras use A-frame?

1, when shooting still life: generally, the aperture priority AV mode is given priority, such as shooting flowers. What kind of depth of field do I want to achieve, a stamen or a flower or a whole bunch of flowers? After confirmation, choose the appropriate aperture and adjust the playback, which can control the depth of field to the maximum extent and achieve the desired effect.

2. When shooting the night scene: When there is a tripod, in order to prevent noise, generally use a small aperture with a slow shutter; In the absence of a tripod, the maximum aperture is generally used to increase the amount of light entering, and a higher iso is used to ensure the safety shutter of exposure, thus solving the problem of insufficient hand-held stability.

3. When shooting portraits: use A file+spot metering, and then fine-tune exposure compensation, which is very convenient and practical. It is especially helpful for people who pat their eyes and pursue shallow depth of field.

4. Find the best aperture of the lens: Any lens has an aperture range, and there is an aperture with the best imaging in this range. Generally speaking, in many cases, the best aperture value of a lens is that the maximum aperture is reduced by about 2-3 orders of magnitude. For example, a lens with f/ 1.8 may have an optimal aperture of f/5.6-f/8.