长焦相机拍摄技巧（Long focus camera shooting skills）.doc

长焦相机拍摄技巧（Long focus camera shooting skills） Shooting technique of long focus digital camera (1) 1, how to use spot metering? Spot metering is the metering mode from the manual file that starts from the P file. Does the automatic file start at AUTO?. The first to file, press the function key in the middle of the camera, adjust menu keys to the office and then use metering, metering mode and key about the middle only one point, press the function key (func), and then press the shutter button at the site to the green light to the box, the shutter keep half press the upper left corner, and then click the button to make the locked exposure, + / -, and then release the shutter, the shutter is finally recompose. 2. What is aperture priority and shutter priority? Under what circumstances are they used? We know that the Canon A series has aperture priority and shutter priority files. What are they used for? The greater the aperture, the more light you pass through the unit time, and vice versa. The general representation of the aperture is the letter F+ values, such as F5.6, F4, and so on. It should be noted that the smaller the value, said the larger the aperture, such as F4 than F5.6 large aperture, and between two adjacent the aperture value is two times that of F4 is two times greater than the F5.6 light. Relatively speaking, the definition of the shutter is very simple, that is to allow the light through the aperture time, the way it is expressed in numerical value, such as 1/30 seconds, 1/60 seconds, etc., the same two adjacent shutter is also two times difference. The combination of the aperture and shutter creates exposure, and this combination is not unique when the exposure is certain. For example, the normal exposure combination is F5.6 and 1/30 seconds, and if the aperture is increased by one point, that is, F4, then the shutter value will be 1/60 at this time, and this combination will also achieve normal exposure. Although different combinations can achieve the