What are the basic knowledge of SLR cameras?

What are the basic knowledge of SLR cameras? It is necessary for beginners to master some basic knowledge of photography. Below I have compiled the basic knowledge of SLR cameras for you. Welcome to read the reference!

Basic knowledge of SLR camera

First of all, the idea of photography

SLR cameras imitate people's vision, and what you see with your eyes can be accurately restored into photos with SLR cameras and passed on to others, so that they can be there.

When we pick up the camera to take pictures, the question is in front of us: What do you want to take? Or what do you want to convey through photos, a person, a thing, or a person? The expression of photography is like writing an article. Before writing, you should write for your article? Ideas? Create the central idea of an article. Also known as the entertainment center.

Create a photo? Ideas? This is very important. Don't wait for the same photo? Scrap film? . Looking at a photo is like listening to a song? Incoherent? You can't understand what he is trying to say.

A photo can only be used to explain one thing!

If we try to express many problems in one photo, it can be said that it is a failure. It is also beautiful and interesting to be reluctant to part with many useless elements when composing music. Many beautiful things together cause the observer's visual roaming, thus making? Ideas? Falling.

Painting composition is addition, and simple photographic composition is subtraction. The real photographic composition is to increase information and elements as much as possible without affecting the concept of the picture. Everything depends on the purpose of communication (except for special photography such as photo id or portrait).

Second, the basic knowledge

1. Holding the camera in a correct posture can effectively avoid camera shake. Avoid holding it with one hand. When holding with both hands, one hand holds the camera handle and the other hand holds the zoom or focus ring of the lens. Don't put your hands in a straight line, but form an included angle, which is relatively more stable. When holding the camera, the big arm should clamp the body hard. Relax your small arms, or they will shake easily. The two arms are staggered one after the other to form a stable included angle.

2. Use optical viewfinder or EVF viewfinder. Triangular support is the most stable. Use the optical or EVF viewfinder to find the scenery. Try to avoid using LCD to find views. Because of the optical or EVF viewfinder, people's brow bones can be tightly attached to the viewfinder. With the cooperation of hands, a triangular stable support can be formed.

3. Correct standing posture. When shooting, you should step forward. Don't put your feet in a straight line after one foot. In addition, when shooting, the thighs should be tightened and the calves should be relaxed to avoid the foundation shaking affecting stability.

4. Learn to adjust your heartbeat and breathing. Because of heartbeat and breathing, people are actually shaking at any time. But we can take a deep breath to stabilize ourselves, and then exhale and inhale smoothly. Hold your breath when you press the shutter to minimize jitter.

5, learn to press the shutter half. Don't just press the shutter when you see the scene. The stroke of the camera shutter is divided into two steps, that is, the camera starts autofocus and photometry by pressing the shutter half-way, and then it will start by pressing the shutter fully. Otherwise, you can't measure or focus correctly, the image is virtual and the exposure is not accurate. When you press the shutter, it should be smooth and soft.

6. Exposure within the safe shutter time range.

7. Try to turn on anti-shake when holding it. When installing the tripod, please turn off the anti-shake to avoid the interference of the anti-shake system.

8. Don't take pictures with your camera bag on your back or something in your hand. If you are exposed for a long time, put down all your equipment, and the extra load will make your body out of balance. It is easy to cause physical fatigue and jitter.

9. Find a stable support. If the shutter speed displayed by the metering value is much longer than the safe shutter speed, and there is no tripod at hand, you can find some stable brackets for emergency shooting. For example, leaning against a tree or a wall is more stable than standing without support. The exposure time is 1? In the case of 3 seconds, you can often get good results by pressing the camera tightly on the bracket with both hands to keep it stable. Sometimes, you can put the camera directly on the ground or on the wall to shoot. Its stability is comparable to a tripod. If you are shooting scenery and other objects, you can also put the camera in the camera bag or bean bag to take a selfie. Bean bag is a kind of bag filled with beans or ceramsite, which can be deformed at will and is not easy to wear the camera.

10, make good use of tripods and monopods. ? How does a tripod look at photographers? . The biggest trouble for people who have just started to touch the camera is that the hand holding the camera can't keep steady and shake. Although many cameras have anti-shake function, they can't cope with large jitter. Especially when shooting at night, jitter is more likely to cause inaccurate focus and blurred photos. Besides shooting more and practicing more, shooting with a camera on a tripod is the most reliable.

1 1, make good use of RAW format! If the memory card is large enough for the landscape, use the RAW format. In this way, more details of light and dark parts can be preserved, and it is easier to correct white balance and hue, which provides the maximum space for post-processing.

Light: Light is the foundation and soul of photographic composition. Photography mainly controls the picture according to the color temperature and intensity of the light itself, and integrates personal feelings into the photo through the illumination angle of the light. When selecting and processing light, we must consider the influence of the environment around the subject on the light and shadow structure of the picture anytime and anywhere. Natural light can't be controlled, but it can be adjusted by shading and reflection. Artificial light can be controlled. We can control the modeling effect at will and make it change. When complex natural light and artificial light are mixed, attention should be paid to controlling the consistency of color temperature.

Color: If light gives life to photos, then color injects more emotion into photos. As one of the important elements of photographic composition, color plays an important role in composition. When shooting, through the subjective control of the color composition of the picture, the color elements are designed, refined and selected, and the shot photos will get better artistic effects, thus rendering and setting off the emotional tone and specific atmosphere needed by the theme and content.

1, the harmony of contrasting colors: refers to the relationship between complementary colors, such as red and green, which can get a harmonious effect if properly configured.

2. Harmony of adjacent colors: such as yellow and orange, blue and green. It will present a quiet tone and give people an extraordinary harmony.

3. Harmony of similar colors: also known as harmony of the same color, such as deep red and light red, deep blue and light blue. 4. Harmony between achromatic and glossy colors and other colors: achromatic colors include black, white and gray, and glossy colors include gold and silver. Achromatic color and glossy colors can be matched with any other colors to achieve a perfect color effect. Effects of different shutter speeds and aperture combinations

Shadow Tone: Shadow Tone refers to the brightness of the image in the picture and the relationship between brightness and darkness. It is an important means to deal with the modeling, composition and contrast of atmosphere, express emotions and reflect creative intentions. From the perspective of black-and-white photography, the main colors of tones can be divided into three categories: high-key, low-key and middle-key (gray tone). Different tones have different emotional colors, high-profile lightness and elegance, low-key solemnity and depth, and harmonious and stable middle tones. Only by combining hue with concrete images and objects can the works be endowed with vivid appeal.

Line: Line generally refers to the line between the light and dark boundary and the image shown in the figure. Reasonable use of lines in composition can convey different emotions. Lines can be divided into exterior lines and interior lines according to different positions. External lines refer to the image outline of the screen, and internal lines refer to the lines within the main outline. According to different forms, lines can be divided into straight lines and curves, and straight lines can be divided into horizontal lines, vertical lines and diagonal lines. Horizontal lines tend to produce a sense of width. When shooting scenery, horizontal lines are often used as the main line of composition. Vertical lines easily convey a sense of towering, such as buildings, tall and straight trees, high and steep peaks, etc. A curve refers to a trajectory formed by a point moving in a certain direction and changing backwards. Curves give people a beautiful, soft, light and smooth feeling.