Basic photography

Never reverse the order of learning photography!

1. Photographic frame-exposure

① exposure aperture

The larger the numerical value, the less light enters, the smaller the light star and the smaller the blur;

The smaller the value, the more light enters, the larger the aperture and the greater the blur.

② exposure shutter

The larger the value, the more light enters, the smaller the shutter and the slower the speed;

The smaller the value, the less light enters, the larger the shutter and the faster the speed.

③ Exposure sensitivity

The larger the value, the more light enters, the more photo sandwiches, and the worse the quality;

The smaller the value, the less light enters, the darker the photo, and the better the picture quality.

2. Photographic frame focusing mode

① Focus mode-manual focus -MF. Pure manual focusing, when automatic focusing is impossible.

② autofocus -AF. Single focus, not recommended for novice intelligent focusing, suitable for small white continuous focusing, suitable for shooting moving objects.

3. Photographic frame-focal length

① The smaller the number, the shorter the focal length and the wider the viewing angle;

② The larger the number, the longer the focal length and the narrower the viewing angle.

4. Photo frame-white balance

① The lower the K value, the colder the photo color;

② The higher the k value, the warmer the photo color.

5. Photographic frame-photometric mode

① Spot metering-suitable for shooting close-ups;

② Partial photometry is suitable for taking close-ups of portraits, but it is not recommended, and the side light range is narrow;

③ Evaluation photometry-suitable for novices, can be used in any occasion, and is easy to operate;

4 central key metering-more commonly used, suitable for taking scenery and taking photos with many people.

Three elements of exposure

hole

The larger the f value, the smaller the aperture, the less the light entering and the darker the front picture;

The smaller the f value, the larger the aperture, the more light entering and the brighter the picture.

shutter

High-speed shutter (large value), the darker the picture, can freeze the moment;

Low-speed shutter (small value), the brighter the picture, you can record the motion trajectory.

speed

The larger the ISO value, the brighter the picture, the more noise and the rougher the picture.

The smaller the ISO value, the darker the picture, the less noise and the more delicate the picture.

measure

At present, we usually use spot metering and evaluation metering. When the contrast between light and dark is large, you can choose spot metering; When shooting in an environment with small contrast between light and dark, you can choose to evaluate the metering mode.

Spot photometry

That is to say, a point in the picture is selected for photometry, and the area of this point accounts for about 3% of the picture, which is suitable for shooting pictures with large contrast between light and dark, such as backlight shooting.

Partial measurement

Select a part of the picture for metering, which is suitable for shooting with large contrast between light and dark.

Evaluation photometry

Divide the picture into several parts, measure the light of each part, and take its average value as the exposure benchmark, which is suitable for shooting with small contrast between light and dark. Such as landscape photos.

Central key photometry

Similar to evaluation photometry, but the weight of the middle part is higher and the weight of the periphery is smaller, taking into account the edge brightness. Suitable for shooting environmental portraits.

Focus mode

Auto focus. Is the camera autofocus, represented by AF-A, according to whether the subject is moving or not, it is sometimes wrong to choose single focus or continuous focus.

MF autofocus. Manual focusing is expressed by MF, which is the most accurate focusing method. When autofocus fails, for example, the shooting distance is too close and there is an object blocking, it is necessary to manually focus to adjust. There are also details that the subject needs to pay attention to, such as macro shooting, which needs to be manually focused.

AF-S single focus. Single autofocus is generally represented by AF-S. When the shutter is pressed halfway, it will beep, indicating that the focus is completed. Press the shutter to shoot, generally suitable for shooting still life, such as commodity shooting, flowers and plants shooting, posing portraits and so on.

AF-S single focus. Servo focusing, also known as continuous focusing, is represented by AF-C ... When shooting a moving subject, you can focus until the end of shooting without half pressing the shutter.

white balance

When the k value is less than 3800K, the color tone is cold and the picture is cold. Suitable for taking photos with emotional style. When the K value is between 4000 K and 5500 K, the color tone is close to the actual environment, and the color tone is normal, which is a relatively real effect and suitable for taking portraits and photos. When the k value is greater than 5500K, the color tone is warmer, and the picture has a warm and nostalgic effect, which is suitable for taking photos with warm style or memory style.