Skills of choosing a digital camera

What are the skills to buy a digital camera? How to control the sensitivity of digital camera? Below, I sorted out the skills of purchasing digital cameras, hoping to help you!

If new buyers want to take good photos, they must see four things to pay attention to.

? Please read the product manual carefully.

When it comes to the product manual, it should be the first thing we often see in the process of disassembling, but it is ignored by most users. As we all know, for ordinary family users and some beginners in photography, product manuals are the best first teachers. When we take the camera we just bought home, unpack it, and check that it is correct, we seem to have spent a lot of time on the surface by carefully reading the product manual or the quick manual that comes with some products, but we are familiar with the function settings and common control methods of each part of the camera in the shortest time. At the same time, some misoperation can be avoided. I believe that even consumers who have used it for a period of time can find something after reading the instructions carefully and solve the problems they were troubled before.

? Don't be superstitious about automatic mode

For digital cameras, the parameter settings that can affect the imaging effect generally include sensitivity, exposure and white balance. Automatic mode is the most commonly used mode for beginners. In this mode, the above three parameters are controlled by the camera itself and cannot be changed artificially. However, in some complicated lighting conditions indoors or at night, automatic mode can't help us to take satisfactory photos. At this time, it needs to be solved by some simple manual operations. For example, in some environments with large light, the automatic exposure of the camera may not be accurate enough, so we can make appropriate exposure compensation adjustment in the automatic exposure mode of P-file program to achieve the ideal value. In addition, when shooting at night, if automatic ISO is used, the camera often uses the highest sensitivity to ensure the shutter speed, which brings serious noise. In fact, we can appropriately increase the sensitivity and turn on the built-in flash according to the light conditions at that time.

Common problems of novices.

Regardless of priority

You can often see people taking pictures in the park. The photographer is far away from the subject, and the camera used does not have a zoom lens. We can conclude that this will not be a successful photo shoot. Because the photographer can't figure out what he wants to show, is it people or scenery? In terms of composition arrangement and theme conception, photos can only have one theme, and other contents should be theme-centered, which can serve as a foil and better highlight and express the theme connotation. As far as outdoor scenery photos are concerned, there are generally the following two situations:

(1) People-centered. Most photography falls into this category. We travel to scenic spots or take a walk in the park. Taking pictures, taking pictures is mainly a good memory in the future. We can choose representative buildings, flowers, grasslands, lakes and other backgrounds to set off the protagonist. People should occupy the main position in the picture and become the visual center. If we can further vividly reproduce the inner temperament of the characters through expressions, movements and other contents, it will definitely make it worth collecting forever!

(2) Take the scenery as the center and the characters as the decoration. It is often used to express special scenery. For example, shoot a big Buddha statue, and compare the size of the Buddha statue with a small proportion of people in the picture to show the great achievements of ancient civilization; Another example is the Prince's Bay Public Garden in Hangzhou. During the lawn maintenance in spring, a large area of green grass was enclosed and extended to the dark green hills in the distance. In addition, the bubbles blown by children drifted with the wind, forming a wonderful artificial natural landscape. In composition, green is the main body, and people decorate its vitality to show the beauty of the paradise on earth. Yin and Yang face and big black face? Yin and Yang face? It means that the face of a portrait is illuminated by 90-degree side light, half black and half white. This shooting method often shows a strong dramatic effect and is not suitable for life photography.

Big black face refers to the consequences of underexposure of backlit portraits. If you shoot the back or side of the character, you can achieve the effect of silhouette. When shooting a frontal portrait, it is best to fill the light appropriately, such as using tools such as flash or reflector to fill the light. Beginners often do not pay attention to the role of light in the overall composition, or always habitually use a certain kind of light, so it is difficult to improve. Understand the basic knowledge of light first, then practice it, and dare to break through, so as to surpass yourself. Due to the graphic modeling characteristics of the photo, it is easy to accidentally put branches and telephone poles in the distance. Grafting? On the protagonist, it seems that it came from the head minister, which made the original good-looking photos fly in the ointment. In fact, as long as you pay a little attention to changing the angle when shooting, you can avoid it.

How to grasp the photographic sensitivity of beginners?

Set sensitivity

ISO sensitivity is an indicator of light sensitivity. The higher the sensitivity, the more sensitive to light. Generally speaking, the higher the sensitivity, the better the effect when shooting moving objects or low light. However, at high sensitivity, there are more noise signals in the image, and the definition is also reduced. On the contrary, at low sensitivity, the image noise signal is reduced and the image quality is better, but it is not suitable for shooting moving objects or low light environment.

Many players often encounter the following situations: shooting in places where flash is forbidden, such as exhibition halls, we have to use flash, and the result is blurred photos. If the flash is used, the subject will reflect light and affect the picture. The same thing can happen indoors or in dark places.

An easy way to take good photos without using flash is to adjust ISO. Of course, if the ISO setting is improved, the graininess of photos will be more serious, which requires users to master flexibly according to the situation at that time. As we are familiar with traditional cameras, ISO sensitivity indicates the sensitivity of film to light, which is equivalent to100,200,400. The greater the sensitivity value, the more suitable it is to be used in dimly lit places, but it will lose the vividness and naturalness of colors.

By the way, when tone and image reproduction are strict, it is best to use low-sensitivity films with ISO sensitivities of 25 and 64. In order to meet the needs of various occasions, films with ISO sensitivity of 400 are often used, and even films with ISO sensitivity of 800 and 1600 suitable for taking pictures in the dark (disposable cameras) are used.

Although the digital camera does not use film, it is equipped with similar functions and can change its ISO sensitivity (some models cannot change the ISO sensitivity setting, please confirm it in the manual of the digital camera). In this way, when using, when you want to make the shooting effect better, set the ISO to 100, and set the ISO to 400 when the light is insufficient.

Here we want to prevent hand shaking in dark places, so we set ISO to 400. We can set ISO according to the following steps. First, bring up the menu screen and select ISO sensitivity. Then select the highest value of 400 from the ISO sensitivity. After the ISO sensitivity is doubled, the shutter speed can be doubled to make basically the same exposure (the lens aperture is unchanged).

Give advice to novice photographers.

1. Don't think about what you shoot mainly and what you won't shoot secondly before you come into contact with photography. It's a waste of time to think about it, let alone make a decision about what equipment to buy. 100% people don't ask themselves which street they will go to, which alley they will go to several times in their lives, and how many times they will run red lights. The road of photography is unknown, and there is no need to rely on interest to explore and advance.

2. Don't be superstitious. If you want to shoot a subject well, you must equip yourself with some equipment. For example, if you want to take portraits at 85/ 1.4, take landscapes at 16-35/2.8L, and take insects at 100/2.8macro, you will become a black sheep. You can also take portraits from a wide angle and scenery from a telephoto.

The camera is used to create visual enjoyment, not to smash walnuts and fight back in self-defense when encountering gangsters. It is pragmatic to choose a thin and practical camera as far as possible. Of course, the appearance should be beautiful, at least it should complement your appearance.

It's best not to buy the so-called lens of traveling around the world in one mirror, because you are unlikely to travel around the world. If you can travel around the world, you can't shoot anything like 24-300. Why? Just ask a friend who bought this kind of lens. They may be depressed.

If you don't have any foundation and are not interested in learning the basic knowledge of camera, you might as well choose a digital pocket machine first, which should be able to adjust the aperture manually. Don't buy a stupid machine or a movie starter. Because once you find yourself really more and more inspired, you will spend a lot of money to buy a better camera, which is the law. It's out of date to start with film now.

6. Good-looking photos on the Internet, including excellent photos in the forum, especially digital works, are almost all carefully produced in the later stage, which is also an indispensable part of photography. So, if you are interested in asking DX in the forum, you should sincerely explore the PS solution from them, instead of interviewing them where the inspiration came from when they pressed the shutter-I mean, inspiration is hard to learn.

7. Participating in various shooting activities can certainly improve the level quickly, but it can't further improve the level. Photography is a lonely art, whether it's portrait or landscape, there may be a unique style of work to satisfy your independent thinking. Therefore, in my opinion, if you want to make more friends, you should take part in more activities. If you want to improve your photography skills, try to practice alone and learn your own. It was fun.

8. Since you play photography, you don't have to follow too many dogmas. You can immerse yourself in self-satisfaction first, and then slowly accept other people's opinions and suggestions. After all, photography is a subjective art, of course, getting more people's recognition is an addictive enjoyment. I mean, you don't have to take other people's comments too seriously. No one knows your own photography pursuit better than yourself.

9, portraits, don't start with beautiful guys, it will give you an inertia. Real beautiful women and handsome men look good no matter how they shoot. It is suggested to start with the ugly. Shooting such a model has little psychological pressure, and generally it is not demanding how well you shoot. They generally know that they are not very photogenic, and once they shoot well, they will have a sense of accomplishment!

10, for beginners, don't flatter DX. It's no use trying to teach you a few tricks in exchange for DX's favor. The correct way is to clap bricks reasonably and ask questions with questions. DX people often try their best to clarify his creative thinking, so as to improve faster.

Basic knowledge of composition for beginners

Composition should pay attention to echo and symmetry, which is the traditional aesthetic standard of China. Based on this, the composition of photographic works should also pay attention to the following aspects:

1, horizontal position, so that the taken image will not be skewed. You can use buildings, telephone poles and other objects parallel or vertical to the ground as reference objects, and try to keep the picture balanced when taking pictures.

2, good color balance, the picture should have a strong sense of hierarchy, to ensure that the main body can stand out from all backgrounds. Such as complementary colors, the so-called red flowers and green leaves are in line with this truth. With the same color balance, people wearing black clothes generally don't arrange to shoot on a dark background.

3. Foreground can balance the picture. Sometimes, when we find that the vacancy on the picture is unbalanced, such as when the sky in Wan Li is cloudless and monotonous, we put drooping branches and leaves on it to make up for the lack of the picture; Sometimes the bottom of the picture can't be pressed. When the top is heavy and the bottom is light, you can use rocks and railings as the foreground, and the dark color makes the picture feel depressed, achieving a stable and balanced effect. The foreground adopts the expression of virtual focus, which gives people a feeling of hazy beauty.

In real life, all stable objects have a balanced form: the four legs of the table are stable; Building a house with a small bottom and a big top gives people a feeling of instability; Carrying a heavy burden makes it inconvenient to walk; People's posture in labor is obviously a posture of seeking physical balance to conform to this labor characteristic? . Many life phenomena cultivate people's psychology of demanding balance and play a role in people's aesthetic process. Generally speaking, the picture should be balanced and stable, which makes people feel stable, harmonious and complete. Using people's psychological factors for balance, we can emphasize the expressive force of the picture from several aspects:

A, symmetrical composition, symmetry has always been emphasized by our nation, and it has always been a palace. The capitals are all symmetrically arranged. It emphasizes a solemn atmosphere. Safe and sound In the symmetrical equilibrium, it shows a simple and solemn relationship.

B, the virtual and the real echo the layout, just like Jiangnan gardens. In some lyrical landscape pictures that emphasize elegance, quietness and softness, it is required that there can be sparse and dense, virtual and real in the changing balance picture, but overall balance is required. In an idyllic scene, such as a cow in the lower left corner, there should be a cloud in the sky in the upper right corner.