Quick entry photography skills _ _

A magical remedy that is very abnormal, but self-taught photography can succeed.

First of all, the three elements of exposure

1. Aperture: The smaller the aperture value, the larger the aperture, the more light entering, and the brighter the picture; The larger the aperture value, the smaller the aperture, the less light entering and the darker the picture.

2. Shutter: The smaller the shutter value, the faster the speed, the less the amount of light, and the darker the picture; The larger the shutter value, the slower the speed, the more light entering and the brighter the picture.

3. Sensitivity: The higher the sensitivity, the brighter the picture, the more noise and the rougher the picture quality; The lower the sensitivity, the darker the picture, the less noise and the finer the picture quality.

Second, the focus mode

1. autofocus

Auto-focus means that the camera chooses the focus according to the shooting situation, and it does not need to be set by itself. Auto focus includes single auto focus, artificial intelligence servo focus and artificial intelligence auto focus.

Single autofocus: instructed by AF-S, focusing only once. After half pressing the shutter, you can hear a "click" sound from the camera, indicating that focusing is completed. Suitable for shooting still things, such as flowers and portraits.

Artificial intelligence servo focusing: AF-A indicates that when the shutter is pressed, the camera will switch between single autofocus and artificial intelligence autofocus, and the camera will choose the most suitable focusing mode according to the scene. This focus mode is suitable for shooting unpredictable things such as babies and pets.

Artificial intelligence autofocus: When shooting a moving object, keep the shutter half pressed, and the camera can focus continuously until the shooting is over. Artificial intelligence autofocus, which we usually use to shoot moving things, such as athletes and moving cars.

2.MF autofocus

Manual focusing needs to set its own focus, so the shooting accuracy will be more accurate than automatic focusing. When shooting, we often encounter the situation that autofocus fails because the shooting distance is too close or there is an object blocking. At this time, you need to focus manually.

Third, the focal length.

Definition of focal length:

Refers to the distance from the center of the lens to the center of the sensor, usually marked on the lens.

There are two forms of focal length recognition:

① Numerical range: for example, 18-55mm, indicating that the focal length can be changed within the range of 18-55 (zoom lens);

② Fixed value: for example, 50mm means that the focal length is 50mm and cannot be changed (fixed focus lens).

The focal length affects the width of the viewing angle;

Wide angle: The smaller the focal length, the larger the viewing angle, and the more content you can shoot in a limited space, but it will also produce "perspective distortion".

Telephoto: The larger the focal length, the smaller the viewing angle, and the subject can be enlarged and reduced.

Fourth, the measurement mode.

There are four metering modes commonly used in shooting:

1, evaluation photometry: it is suitable for any scene, and the camera can automatically adjust the photometry range according to the shooting environment, which is very suitable for novices.

2, spot metering: metering a point in the picture, high precision, suitable for taking some close-up and close-up photos, if shooting backlight, spot metering can also be used.

3. Partial photometry: the accuracy of photometry in the central area of the picture is between evaluation photometry and spot photometry, but the frequency used by people is not very high, so it is not recommended.

4. Central key average photometry: The data obtained in the central area of the picture is the most important, and the overall exposure should be appropriately adjusted on the premise of giving priority to ensuring the exposure accuracy in the central area of the picture.

Verb (abbreviation for verb) white balance

Definition of white balance: The basic concept is that "white objects can be restored to white under any light source". The color of the photos taken by the camera is different from that seen by human eyes. White balance is to restore the color of an object to its normal color.

White balance is represented by AWB in the camera, and the unit is K. The common white balance modes are: automatic white balance, tungsten wire white balance, fluorescent white balance, indoor white balance and so on.

Variation law of color temperature and white balance: The variation law of color temperature and balance is completely opposite. The greater the color temperature, the colder the photo (blue), and the smaller the white balance, the colder the photo.

When we want to take warm (yellowish) photos, raise the white balance K value; When we want to take a cool (blue) photo, lower the white balance K value.

Sixth, photographic composition

1. central synthesis method

2. Three-point synthesis method

3. Diagonal synthesis method

4. Symmetric synthesis method

5. Construction method of guide wire

6. Foreground composition method

7. Frame construction method

8. Filling combination method

9. Blank synthesis method