How do novices learn to grasp the sensitivity of photography?

Set the sensitivity

ISO sensitivity is an index of sensitivity to light. The higher the sensitivity, the more sensitive it is to light. Generally speaking, when shooting moving objects or low-light situations, the higher the sensitivity, the better. However, under high sensitivity, there are more image noise signals and the clarity is reduced. On the contrary, when the sensitivity is low, the image noise signals are reduced and the image quality is delicate, but it is not suitable for shooting moving objects or low-light environments.

Many players often encounter the following situation: when shooting in exhibition halls and other places where flash is prohibited, we have to disable the flash. The result is a blurry photo. If a flash is used, the subject will be blurred. The result of reflection affects the picture. The same situation will also occur indoors or in dark places.

An easy way to take good photos without using flash is to adjust the ISO. Of course, if you increase the ISO setting, the graininess of the photo will become more serious, which requires the user to flexibly control it according to the situation at the time. As we are familiar with traditional cameras, ISO sensitivity indicates the film's sensitivity to light, with values ??such as 100, 200, and 400. The larger the sensitivity value, the more suitable it is for use in dimly lit places, but it will lose the vividness and natural feeling of the color.

By the way, when strict requirements on tone and image reproduction are required, it is best to use low-sensitivity films with ISO sensitivities of 25 and 64. In order to be able to be used in a variety of situations, films with an ISO sensitivity of 400 are often used, and there are even films with ISO sensitivities of 800 and 1600 that are suitable for taking pictures in dark places (disposable cameras).

Although digital cameras do not use film, they are equipped with similar functions and can also change their ISO sensitivity (the ISO sensitivity setting of some models cannot be changed, please set it on the digital camera by yourself. Confirmed in the manual). In this way, when using it, when you want to get better shooting results, set the ISO to 100, and when the light is insufficient, set the ISO to 400.

Here we want to prevent hand shake in dark places, so we set the ISO to 400. We can follow the steps below to perform ISO settings. First, bring up the menu screen and select ISO sensitivity. Then choose the highest value from ISO sensitivity, 400. After doubling the ISO sensitivity, doubling the shutter speed can achieve basically the same exposure (the lens aperture remains the same).

Tips for getting started with SLR photography

1. Don’t think over and over again about what you mainly shoot, what you should shoot secondarily, what you won’t, and what you won’t before you get into photography. Thinking about it is in vain, let alone What conclusion should be drawn from this to decide what equipment to buy? Before learning to drive, 100% of people will not ask themselves which street they will go to, which alley they will go to, how many car accidents they will have and how many red lights they will run through in their lifetime. Photography The road is in the unknown, and you rely on interest to explore and move forward. There is no need to follow what others say and be arty.

2. Don’t be superstitious that you must be equipped with certain equipment if you want to shoot certain subjects well. For example, if you want to shoot portraits, you need 85/1.4, if you shoot landscapes, you need 16-35/2.8L, and if you shoot insects, you need 100/2.8MACRO~~~You will become a prodigal son. You can also take portraits at wide angle, and the scenery taken at telephoto has a special flavor. It is said that a certain lens is a portrait lens and a certain lens is a landscape lens. This is the advertising slogan. Used to deceive amateur consumers~~~

3. Cameras are used to create visual enjoyment, not to smash walnuts or to defend themselves against gangsters. It is more pragmatic to choose a light and practical camera as much as possible. Yes, of course, the appearance must be beautiful, at least it must complement your own appearance.

4. It is best not to buy the so-called lens that can travel to the end of the world in one shot, because it is very unlikely that you will be able to travel to the end of the world. If you have the conditions to travel to the end of the world, you cannot use a lens such as 24-300. Why? Just ask your friends who have bought such a lens. They might be depressed.

5. If you don’t have any foundation and are not interested in studying basic camera knowledge, you might as well choose a digital pocket camera first, one that can adjust the aperture manually, don’t buy a point-and-shoot camera, and don’t buy an entry-level film camera. Because once you When you find that you are getting more and more inspired, you will painfully spend another sum of money to buy a better camera. This is the law. Now, starting with film is also outdated.

6. Almost all the good-looking photos on the Internet, including the high-quality photos in the forum, especially the digital works, have been carefully produced in post-production, which is also an indispensable part of photography. Therefore, in the forum, be thoughtful If you ask DX for advice, you should sincerely explore the PS skills from them instead of interviewing them about where the inspiration came from when they clicked the shutter------I mean, inspiration is difficult to learn, and technology It's clear.

7. Participating in various shooting activities can certainly improve your level quickly, but it cannot further improve your level. Photography is a lonely art. Whether it is portraits or landscapes, only through independent thinking can you have a unique style. A work that I am satisfied with. Therefore, my point of view is that if you want to make more friends, participate in more activities; if you want to improve your photography skills, practice alone as much as possible and realize your own skills, which will be endless fun.

8. Since you are doing 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, It's an addictive pleasure to be recognized by more people. What I mean is, don't take other people's evaluations too seriously. No one understands your photography pursuits better than you.

9. When taking portraits, don’t start with beautiful and handsome guys, as that will make you lazy. Real beauties and handsome guys will look good no matter how you take them. It is recommended to start with old and ugly ones, and take photos like this Models have less psychological pressure, and they generally don’t demand how good your photos are, and they generally know that they are not very photogenic, but once you take good photos, you will have a sense of accomplishment!

10. Comments on photography forums Movies, for novices, don’t praise DX. Trying to gain DX’s favor by teaching you a few tricks is in vain. The correct approach is to make reasonable decisions and ask questions with doubts~~~DX people often Try his best to clarify his creative concept, so that he can improve faster.