Which is better, SLR photography, manual or autofocus?

Of course, I chose autofocus, which is fast and accurate. Manual focusing is only a last resort when the light is extremely bad and the background is quite chaotic.

Manual focusing and autofocus have their own advantages. When different scenes are used, we should choose the focusing method in a targeted way.

We can switch AF (Auto Focus) and MF (Manual Focus) modes on the lens.

The following is a detailed analysis of the advantages and applicable scenarios of the two focusing modes.

Auto focus Auto focus is faster and more convenient. When we use the camera to shoot, we will focus on the object by half pressing the shutter, and the camera will focus automatically.

In most scenes, we use autofocus, such as snapshots, daily photos, group photos, etc. autofocus is the most widely used because of its simplicity and quickness.

But sometimes when we use autofocus, the camera can't focus on the subject accurately, so we need to use manual focus.

Manual focusing As mentioned above, manual focusing is a powerful supplement to autofocus. Manual focusing will be used in the following situations:

The light is dim, so it is difficult for autofocus to identify the subject.

The camera will not recognize the subject when the light is dark, so at this time we need to use manual focusing and observe through the viewfinder to ensure that the focus falls on the subject.

Macro shooting

In macro shooting, it is most likely to be out of focus.

For example, in the shooting of this flower, I want the stamen to appear clearly in the picture, but I can't focus on the stamen but on the petals with autofocus; In addition, after autofocus is used in macro shooting, the mobile camera re-composes, because a little movement in macro will cause the picture to be out of focus, resulting in blurred theme.

So at this time, we have to use manual focusing to shoot.

The camera is fixed on a tripod for fixed-point shooting.

For example, when I was shooting the star track before, because I had to press the shutter frequently, if the focus mode was autofocus at this time, the focus would change as soon as I pressed the shutter.

So after we fix the camera on the tripod, we need to focus manually and adjust the focus range before shooting. This also applies to waiting scenes, such as when shooting street scenes, hoping that someone will pass by. If you focus with auto focus later, you will be anxious, so the correct way is to determine the focus first and switch to manual focus mode to wait.

It is concluded that autofocus and manual focus are two very useful modes, which should be selected according to the actual situation in shooting. If you find that the camera's autofocus is difficult to focus on the subject in autofocus mode, you may wish to use manual focusing to shoot.

However, when using manual focusing, it is important to keep the camera stable, because unlike autofocus, if your camera moves, when you press the shutter, the camera will automatically focus on your focus. If we set the focus point in the manual focus mode, the camera position will change when the shutter is pressed and the focus point is set, which will also cause the picture to be blurred.

I have been playing SLR for more than ten years, and both manual and autofocus are commonly used. Both have their own advantages and disadvantages, depending on when they are used and whether they will be used.

Focusing is an important skill in photography, especially when using a SLR camera. Accurate focusing is the key to successful shooting. But any excellent photographic work should at least have a clear picture, delicate details and rich texture, and to achieve this effect, we must work hard on focusing.

Early SLR cameras were almost always focused manually. With the development of digital technology, autofocus has appeared, and it is becoming more and more intelligent, which can basically meet the needs of precise focusing in various situations. However, it doesn't mean that everything can be done. Manual focusing is still the best choice for some photographers.

Objectively speaking, autofocus and manual focus have their own advantages. Auto focus is fast, which means where to play. Manual focusing can prevent virtual focus and be more accurate. Excellent photographers always choose according to the needs of shooting, or complement each other's advantages and avoid weaknesses.

Finally, I want to emphasize that both autofocus and manual focus should be flexible and must not be rigid. The best way is to combine the two organically. For example, you can switch between auto focus and manual focus, or you can use the fine-tuning ring on the lens for manual fine-tuning after auto focus, which can not only ensure the accuracy of focusing, but also improve the shooting efficiency.

First, manual focusing and automatic focusing.

There are two modes of camera focusing, namely manual focusing (MF) and automatic focusing (AF).

① autofocus

There are three types of autofocus, namely: single autofocus (AF-S), continuous autofocus (AF-C) and intelligent autofocus (AF-A).

Intelligent Auto-focus (AF-A): Half-press the shutter and the camera automatically focuses once. This is the most commonly used one, which is suitable for shooting still life.

Continuous autofocus (AF-C); When the shutter is half pressed, the camera will lock the subject or lock the focus area. Once the subject moves, the camera will automatically refocus. This mode is suitable for shooting moving objects.

Intelligent autofocus (AF-A): This mode combines the above two modes and is suitable for shooting random objects.

② Manual focusing

Manual focus means that you change the focus mode to manual focus, and then manually twist the focus ring of the camera to focus until the subject is clear.

Second, manual focusing and autofocus are suitable for the scene.

In fact, most scenes are suitable for autofocus, and only a few scenes or autofocus is really not feasible will manual focus be used.

Use manual focusing to give a normal scene:

① Low light environment: Sometimes shooting in an environment with poor optical fiber. If autofocus is wrong, you have to focus manually.

② Low-contrast objects: In the case of solid-color objects, due to the small contrast of the picture, autofocus will not be right, so manual focusing should be used.

③ Macro photography: For macro photography, autofocus is difficult to work. At this time, the depth of field is extremely shallow, and the camera can't judge where to focus. At this time, you have to focus manually.

Generally speaking, if autofocus can be solved, don't use manual focusing. If autofocus can't be solved, use manual focusing.

3. Who is more powerful, manual focusing or automatic focusing?

In fact, there is no difference between these two focusing methods. Many people think that manual focusing is more accurate than automatic focusing. In fact, on the contrary, in most cases, the success rate of camera manual focusing is less than that of automatic focusing. So everyone should remember that it can be solved by automatic focusing, and try not to use manual focusing because it is too troublesome. When shooting some subjects, there is no time for you to slowly twist the focus ring!

I basically shoot by myself with autofocus. I only use manual focusing when autofocus doesn't work, but manual focusing is rarely used.

Which is better, SLR photography, manual focusing or autofocus? There is no clear answer. Some people may advocate manual focusing, most of them are old photographers in the movie era. Novice photographers will find manual focusing very troublesome and can't master it well. Usually autofocus. In fact, more people are semi-autofocus.

The so-called semi-automatic focusing is to adopt aperture priority mode or shutter priority mode. In this way, you can take the most ideal photos according to your own intentions. For example, if I want to shoot portraits and flowers with deep scenes, I can automatically match the speed with a fixed large aperture; Or if I want to shoot a moving object, I need speed first. In fact, even a photographer will often switch modes according to the needs of shooting.

The focusing method of SLR camera depends on the flexible use environment and shooting method, which is also the charm of SLR. For example, when shooting the total lunar eclipse and the red moon last night, due to the low brightness and small background contrast, it is very likely that the automatic focusing of the wind cabin will be inaccurate. At this time, manual focusing is faster; For another example, if it is difficult to avoid the macro shooting of flowers and plants in the foreground or the irregular swing of trees and grass leaves, it is likely that the focus will fall on the auxiliary body or the foreground and the main body will be blurred by autofocus. At this time, if the subject is selected by manual focusing, there will be no "grabbing the lens". Of course, in addition, the general scene and sports photography, or autofocus fast. About which of these two is better, in a simple sentence, it is

Specific analysis of specific problems!

Generally speaking, it is unscientific to say which is better, manual or autofocus. The key is to see under what conditions, the complexity of the topic and so on.

For example, the best way to win by speed is to use autofocus. Manual operation is slower. However, this is not absolute. If the Quan Jingshen mode is set in advance, the manual focus will not be lost to the automatic focus.

In complex environmental conditions, autofocus often fails, and only manual focusing is reliable. For example, in order to blur the foreground, we can only focus manually and shoot flowers in the gap of a pile of branches. In addition, such as foggy days, indifferent sky (shooting starry sky and star track), water surface and even glass counters. , you must rely on manual focusing.

They have their own advantages and disadvantages, and learning from each other's strengths is the best choice.

Ainong graphic 202 1 February 1

Auto focus and manual focus are not comparisons, but partners. Shoot whoever should be shot, both hands should be hard.

Auto-focus is enough for most scenes, and automatic manual combination or pure manual for special scenes!

My personal use of manual focusing is as follows:

I used the manual lens for a while, and I especially like the feel of the old manual lens. I bought a few and couldn't put them down, so I changed my camera and had to focus manually. I took more than 10,000 photos to practice the skills and feel of manual focusing. Very tired and happy!

The macro lens I use for macro shooting has real-time manual focusing, that is, the automatic focusing first finds the target, and at the same time, the manual fine-tuning focuses on the key parts of the target, such as the eyes of insects. At this time, the automatic accuracy is not high, because he may not know where you are going!

It is almost impossible to automatically focus on the starry sky to shoot the star track, and the camera can't find the target at all, so it is necessary to focus manually. First, twist the focus ring to infinity, and then recycle a little, which is basically enough.

Poor light sometimes the light in the shooting environment is not ideal, it is very dark, and autofocus can't focus. The camera creaked and kept trying to focus. Either you give some light to help focus, I usually use a small flashlight. If you can't shine, you can simply use it manually. Telephoto is difficult to focus at this time, and wide angle is easy to focus.

The environment is too complicated. You shoot bees in the flowers, a grass in the grass and a bud in the leafy environment! The autofocus of the camera will constantly try to focus or aim at the object you don't want, so manual is definitely the first choice, fine-tuning and locking the object.

In fact, we can use auto in most scenes, but when auto really doesn't work, let's put on its partner and focus manually! Only in this way can you shoot all kinds of content you want to shoot, so it is the last word to use it together!

laxative

The problem of the topic is relatively small. In fact, there is no difference between auto focus and manual focus. Due to technical reasons, the earliest film cameras did not have an automatic focusing system, so they could only focus manually. With the development of technology, manual focusing gradually fades out of people's field of vision. The only Leica camera, because of feeling rather than technology, can only focus manually. Therefore, autofocus is a trend and a demonstration of the technical level of manufacturers. But is manual focusing really useless? No, in some cases, you must use manual focus to shoot.

Scene 1: Shoot the starry sky or the moon. Because the moon and stars are bright, just like a blank sheet of paper, autofocus is actually ineffective at this time, and the camera can't judge the subject. You can try to shoot at the white wall with your camera. The camera will only keep focusing and never shoot accurately. Therefore, shooting the moon and starry sky can only be focused manually. And it's not infinite, because the moon is not infinite away from us and needs to be adjusted back.

Case 2: Macro shooting, when using a professional macro lens, although the description may mention the nearest focal length, it generally refers to the manual nearest focal length. If autofocus is used, the nearest focal length usually increases. And if you use autofocus for macro shooting, you will not be able to focus.

However, there are many tasks in daily shooting that can't be completed by manual focusing. For example, shooting sports subjects requires a faster focusing speed to ensure shooting moving objects. Manual focusing is impossible at this time.

So neither is better, but different methods are used in different shooting. Manual focusing will not disappear in a short time, and autofocus will get better and better.

There is no difference between SLR photography, manual focusing and autofocus, but the applicable scenes are different. At present, the autofocus function of digital SLR is very powerful, which can be applied to most shooting scenes, and autofocus should be the main way in daily shooting. Novice photographers must not believe those professional stories about manual focusing. I have seen too many such examples, such as blind manual exposure and manual focusing, being in a hurry when shooting, and playing with photography, and the photos taken are still unclear. A camera with more than 20,000 yuan, at least half of which is spent on the autofocus system, seems a bit silly to spend so much money on the function. Of course, manual focusing is not without its merits. When there is no contrast between shooting night scenes, starry galaxies, macro insects, urban flowers and plants and the subject, manual focusing is needed, which leads to the failure of autofocus. In fact, the camera manual explains under what circumstances to use manual.