Eight things you must know to learn photography.

Eight things you must know to learn photography.

1. focal length-

What is the focal length of the lens?

Simply put, it is how far or how wide a lens can be shot. The smaller the number, the shorter the focal length and the wider the viewing angle. The larger the number, the longer the focal length and the narrower the viewing angle.

2. Aperture-

How to distinguish between large aperture and small aperture?

Large aperture: aperture F/ 14, F/2.8, etc. The smaller the f value, the larger the aperture and the more blurred the background.

Small aperture: aperture F/ 1 1, F/22, etc. The larger the F value, the smaller the aperture and the clearer the background.

3. Depth of field-

Generally speaking, the depth of field means that after the camera is focused, the nearest and farthest planes have two clear critical planes, and the distance between the two planes is the depth of field. The role of depth of field is to avoid the messy background, open the aperture and blur the background.

4. Shutter speed-

What is shutter speed?

The faster the shutter speed, the more fixed the action you can capture (for example, 1/800s, 1/2000s, etc. ), and the slower the shutter speed, the more blurred your snapping action will be, such as taking a long exposure with a slow door (1/20s, 1/30s, etc. , but use a tripod).

Does shutter speed affect photo exposure?

The larger the shutter value, the more light enters, the brighter the photo and the slower the shutter (for example, 1/30s is suitable for taking slow door photos). The smaller the shutter value, the less light enters, the darker the photo, and the faster the shutter (for example, 1/800s is suitable for capturing vehicles/athletes/pets/babies, etc. ).

Three creative techniques of Slow Door;

① Use a tripod and shoot slowly. At this time, the moving object will be blurred, while the static object is still real.

② Move the camera and shoot with long exposure, such as focal plane and Wong Kar-wai.

③ Move the camera and shoot the action. Choose a position suitable for panning and a slow shutter speed. The trick is to keep the camera and the subject moving at the same speed, so that the subject is clear and other parts are blurred.

5. Focus-

What is focus?

Focusing means focusing through the camera, and the process of making the object from blurred to clear is focusing. I believe everyone knows about focusing, but how to focus correctly without blurring?

How to avoid unclear photos?

Babies prone to blurred photos must remember the following points:

① Keep a safe shutter when shooting. If you use a 50mm lens and the shutter value reaches 1/50s, you can take pictures without shaking your hands, but it is recommended to be above1100s!

② Keep the camera stable, such as using a tripod to avoid camera shake.

3. Pay attention to each other's eyes. When taking a single photo, especially a half-length close-up, the focal point is usually on the eyes, especially when taking a portrait with a large aperture!

④ In low light environment, manual focusing is adopted. When the ambient light is too dim, it is often impossible to focus and shoot clearly.

⑤ Try not to use the maximum aperture. For example, the maximum diameter of a small spittoon is F 1.8. If the aperture is set to 1.8, the imaging is often not clear enough or even blurred.

6. Composition-

As a novice, you don't have to remember dozens of compositions in your mind, just remember the following simple and common methods.

Trigonometry:

When composing a composition, the picture is divided into three parts with two vertical lines and horizontal lines, and the main body is placed at four intersections, which is more in line with visual aesthetics.

Central composition:

Put the subject in the center of the picture, and the picture looks balanced, stable and echoing.

Diagonal composition:

This composition extends from one corner of the picture to the other, which can add dynamic tension to the picture and make the photo look more vivid.

Frame composition:

Choosing a framed foreground can lead the audience's eyes to the scenery in the frame, highlight the main body and create a sense of depth.

7. Prime time-

What time of day is the best time to take pictures?

Generally speaking, it is more suitable for outdoor shooting to avoid noon 12: 13. "Prime time" refers to about 1 hour after sunrise and before sunset. In prime time, the angle of sunlight drops, and it will not project vertically from the top of the graph. Moreover, the sunshine at night is softer than at noon, which avoids forming a strong shadow on the characters' faces.

8. Light

Light sources are mainly divided into natural light and artificial light, while light quality is divided into hard light and soft light. Commonly used light levels, the baby remembers the following three:

Divergent light: Divergent light refers to the light from the front of the subject. It is characterized by good color reproduction and is suitable for taking small and fresh photos of people. (Sugar syrup tablets are most commonly used to shoot girls)

Side light: the light emitted from the left and right sides of the subject at 45 ~ 90 degrees is side light. Side light shooting can highlight the three-dimensional sense of the five senses and the texture of the picture.

Backlight: suitable for shooting before and after sunrise and sunset; It is often used to take silhouette portraits.