Traditional Culture Encyclopedia - Photography major - Should the camera be set to m at the same time when taking pictures within m range?

Should the camera be set to m at the same time when taking pictures within m range?

These are two different things. Camera M file allows photographers to set the aperture and exposure speed according to their own needs; The m position on the lens should be the manual focus position.

Many photographers are always struggling with a problem, that is, the M in the camera exposure board and the M in the lens are not clear how to use it. The question itself actually exposes the nature of being completely unfamiliar with the camera.

The camera and lens on the M are completely two functions.

The M position in the camera exposure panel is completely manual, and both the shutter and aperture need to be adjusted manually. The camera is not responsible for whether the photo exposure brightness is normal. Using this mode requires you to be familiar with all camera operations, otherwise it is very likely that the photos taken will be overexposed or underexposed.

M on the lens is the manual focus switch of the lens. Almost all the lenses we use now can focus automatically. However, due to the influence of the focusing environment, for example, in a dark environment, autofocus is sometimes inaccurate or out of order, so when manual focusing is needed, you can turn this button to M, and the lens will turn off the autofocus function and focus only by manual focusing.

These two functions are independent and unrelated, so you don't need to shoot in M file, and the lens should be set to M at the same time.

Author: Guo Wei

In the previously published articles and questions and answers, Xiao K also mentioned many times that many beginners have asked similar questions, which shows that this question is still universal:

First, the M range of the camera is "manual exposure", which is an exposure control mode.

The m range of the camera refers to the built-in manual exposure control mode of the camera, that is, the camera exposure parameters and exposure are specified by the photographer:

In the M file, the camera metering system can provide manual exposure reference for the photographer through the exposure indicator, but it will not specify any exposure parameters, including aperture, shutter and ISO:

The setting of M file is very simple. Generally, the main mode dial can be set to "M", which is the case with Nikon Canon:

Second, the M logo on the lens is "manual focus", which is a new focus control mode.

The m sign on the lens is located on the focus indicator, which means manual focus in English, that is, manual focus. In the manual focusing mode, the camera autofocus system is shielded, and the focusing state is controlled by the photographer by adjusting the focusing ring:

3. Manual exposure and manual focusing are independent of each other and do not interfere with each other.

The exposure system and the focusing system are independent of each other, and their corresponding control modes can be freely combined without interference. Beginners must not be confused about this:

Four. Tips and suggestions

1. Manual exposure is not recommended for beginners.

Novices are not familiar with the basic exposure parameters and camera exposure control principle, so it is not wise to use manual exposure directly. When you are familiar with the above knowledge, you know when to use manual exposure, and it is not too late to use it again.

2. Nikon machine manual focusing needs to adjust the machine focus indicator and lens focus indicator at the same time.

For Nikon users, this requires special attention:

1, when shooting still life, you need to focus manually occasionally. In addition, photographers who shoot still life basically use M file, which is convenient for controlling exposure and aperture. Manual focusing is to focus on a certain part of the subject accurately, not the point where the camera automatically focuses.

2. The shooting environment is dark, and neither the camera nor the lens can complete autofocus. At this time, the photographer needs to change the lens to manual focus. For example, paparazzi photographers will automatically focus on the glass through the pasted car glass. At this time, the photographer must change to manual focusing to calibrate.

4. Foreground and background are interlaced. Many times we want to shoot the scenery in the back, and the lens focuses on the foreground. If you want to focus on the background, you'd better focus it manually.

In fact, the simplest understanding is similar to the automatic transmission of a car. Nowadays, cars are all automatic, and most of the time they still use automatic transmission. However, under special circumstances, the driver needs to manually control the car, such as going downhill, and stepping on the brakes for a long time will lead to overheating of the brake system and inability to stop. At this point, the driver uses the traction of the car gear to manually reduce the speed to achieve a reasonable speed. These two ideas are similar.

The question you asked is a bit confusing. You can't blame other comrades for their views, because your question is not clear. M-file on camera, M-file in exposure combination or M-file in focus, there are generally three files in focus: M-file, manual focus, S-file, auto focus, C-file and tracking focus. If you mean the M file here, you have to use the M file, and the camera must be pulled to the M file, otherwise it will be screwed up, ha. Just think for yourself here. For example, if the lens is in M position, even if the camera is set to autofocus, you can't shoot well, so the camera and lens should be unified. The difference is that whether it is S or C (tracking and focusing) file, the lens must be in automatic file. If it is the M file of the exposure combination, I won't go into details, comrades have made it very clear.

The camera takes pictures in M-scale, regardless of the A or M of the lens. These are two different things.

Before figuring out this problem, it is necessary to figure out what exposure is and what focusing is. When taking pictures, the first thing to do is to measure the light, that is, through the camera's metering system, to determine what exposure combination is needed for the surface light of the subject to set up the camera. After measuring the exposure data, we need to set the exposure combination as needed, and set the aperture, shutter speed and sensitivity respectively. The whole process of metering and adjusting the combination of exposure parameters is the exposure process. Without proper exposure, you can't take pictures with proper light. Overexposure leads to a large area of white photos, and underexposure leads to dark photos. Focusing has nothing to do with exposure. Focusing is also an important part of taking pictures. Its function is to determine the focus of the camera and set a clear focus through the linkage between the lens and the camera focusing system. This process is focusing. If you don't focus correctly, you can't take a clear photo, and the exposure criteria won't make the subject of the photo you want to express clear.

Generally speaking, the M position on the camera body exists above the exposure mode dial. This M mode means that the camera needs to use manual exposure to take pictures. That is to say, the photographer sets the aperture value, shutter speed value and iso sensitivity value of the camera according to the photometry to achieve the exposure effect that the photographer wants. When the exposure dial on the camera is in the M position, it is necessary to manually adjust the combination keys such as the front impeller and the rear impeller of the camera to adjust the exposure. This has nothing to do with whether the focus of the photo is clear or not. The main responsibility of focusing lies in the lens. MF on the lens refers to manual focusing, and AF refers to automatic focusing. This turn-on setting only affects the focus mode, and has nothing to do with exposure. When the focus mode on the lens is in MF, the autofocus system of the camera will no longer work, and the autofocus button such as half pressing the shutter will be invalid. How to focus? You need to turn the focusing ring on the lens by hand to focus the camera. This process is manual focusing.

Therefore, it is obvious that manual exposure and manual focusing are different shooting links, so it can be understood that not all shooting links of M file need to be manual. How to do it manually? Whether to achieve manual exposure or manual focusing is up to the photographer. In modern camera systems, manual exposure is still a common way, because photography is the art of using light, and people need to determine what kind of light is expressed in a photo. For example, if you need to take a photo with a backlit silhouette effect, if you follow the camera's automatic exposure, it is likely to backfire, with the subject exposed normally and the background completely overexposed. At this time, it is necessary to manually adjust the exposure to achieve the shooting intention. However, manual focusing is generally not used, because the automatic focusing system of the camera is mature and reliable in most cases, and manual focusing is only needed in some cases. For example, when shooting macro subjects and starry subjects with poor focus, it is necessary to use manual focus combined with LV live view system to achieve accurate focus.

When the camera is in the M position, users can freely adjust the shutter speed, aperture size and iso parameters of the camera according to their needs, so as to take photos with favorite tones. Of course, it can also be done with aperture priority and shutter priority or automatic gear.

When shooting in the m range, the manual adjustment and autofocus switch on the lens do not have to be in the m position.

When is the manual focus of the lens used? In a dark environment, or when focusing in white, the camera cannot focus automatically. The popular saying is that when the camera's autofocus can't focus, you need to hit M to focus manually.

The M-file of the camera and the M-file of the lens cannot be confused.

When shooting video with a camera, the lens often uses manual focusing to prevent focusing errors.

No need! These two m's are different.

M gear on the fuselage is to control exposure, that is, manual exposure; The m position on the lens controls focusing, that is, manual focusing. Not the same concept.

But for many white machine novices, there will be the same question. They can't tell the M file in the camera from the M file in the lens. Is it the same thing?

In fact, the m in the camera is completely irrelevant to the m in the lens. First of all, the M in the camera is in full manual mode. If you hit the camera to M, at this time, whether it is the aperture shutter sensitivity, you need to do it manually, depending on the situation on the spot.

At this time, it involves a problem. If we choose an M camera, there is no need to adjust the lens to M, because for the lens, M is manual focusing. Generally speaking, most lenses now have autofocus function.

The so-called af function, in the use of this function, we don't need to adjust the lens specially.

The lens can focus automatically.

On the other hand, if we set the camera to another gear, if we set the lens to flight M gear, then we still need to focus manually.

Therefore, it is suggested that ordinary friends can adjust the camera lens to F, but it is not necessary to adjust it to M. For ordinary users, the manual function is still not as powerful as the automatic function

Should the camera be set to m at the same time when taking pictures within m range?

This question only explains the meaning of lens M, and has nothing to do with M-file shooting.

M(MF) on the lens means manual focusing, that is, if the lens is set to M, the focus ring must be manually adjusted to focus on the theme until the theme is clear.

AF on the lens is autofocus, that is, when you press the shutter halfway, you don't need to manually adjust the focus ring, and the camera will automatically realize the focus theme according to your focus point until it is clear.

In fact, these two focusing modes have their own uses. Auto focus is suitable for shooting portraits, landscapes, etc. And manual focusing is suitable for shooting tiny things.