When is aperture priority used?

Question 1: What are the functions of aperture priority and shutter priority of SLR cameras, and when are they used? In terms of use, the landlord's understanding should be generally no problem.

Speaking of this problem, we must first explain the relationship between the exposure triangle.

Aperture, shutter and sensitivity will all affect exposure.

It can be said that in the case of the same sensitivity, to maintain the same exposure, the larger the aperture, the faster the shutter; The smaller the aperture, the slower the shutter.

So choosing shutter priority or aperture priority mainly depends on which parameter you want to ensure to show the effect you want to achieve.

For example, if you want to shoot water, use the shutter first, then if you want to shoot a sense of solidification, you must use a high-speed shutter; If you want to shoot satin, you must use a slow shutter.

However, aperture priority does not only refer to large aperture, so it is not only for blurring and blurring the background. In other words, what aperture you use mainly depends on what effect you want to show.

I hope it helps you ~ ~

Question 2: Explain when to shoot with aperture priority in three general modes: aperture priority (A mode), speed priority (S mode) and automatic (P mode). The most commonly used mode is mode A. Briefly talk about the application of these three modes:

A mode-mainly controls the depth of field effect, and achieves the purpose of blurring or clearing the background through a large aperture or a small aperture. For example, portraits, flowers and plants often use large apertures, and landscapes use small apertures to increase the depth of field.

S mode-usually used when shooting moving objects. The difference between S mode and A mode is that only speed is the main consideration index, and depth of field is the second. For example, take photos of running, playing ball and birds.

M mode-artificially set the aperture and speed to achieve personalized effect. This method is mainly used by professional photographers.

Question 3: How to use the aperture of the camera first? 1. The question you added may be different from your understanding. The aperture series is: 2.85.681116, etc. The larger the value, the smaller the aperture.

Second, metaphorically speaking, the aperture is like the window of your room. The bigger the window, the brighter the room.

Thirdly, the aperture size only affects the depth of field (the relatively clear distance from the center of the shooting point), but has little effect on the clarity of the image.

4. Each lens has its best imaging aperture (usually near the middle aperture). For the aperture series I mentioned in the first article, usually one-eighth or 1 1 aperture is the best imaging effect. This difference is usually invisible.

In short, whether to use the aperture or the speed first depends on the requirements of your shooting destination, and has nothing to do with the surrounding light and clarity. If a flash is used, the aperture should be given priority in order to determine the action distance of the flash. Under a certain flash index, the larger the aperture, the greater the working distance.

Question 4: How to give priority to the aperture on SLR? First use SLR aperture: set the mode to A (or Av), and then adjust the aperture value according to your own needs (large aperture-small depth of field; Small aperture-large depth of field), hold the camera steady, keep your eyes on the viewfinder (you can turn the wide zoom ring of the lens to change the size of the object in the viewfinder), aim the lens at the subject, press the shutter button lightly, and when you see the object clearly in the viewfinder, press the shutter button completely to expose it.

Question 5: Both aperture priority and shutter priority are used. Under what circumstances, the aperture is preferably used in dark environment, flowers, close-ups of portraits, group photos, landscape photos and other occasions that require a large depth of field. Shutter priority needs slow waterfalls and fast-moving objects, provided that a safe shutter is ensured.

Question 6: Every time the aperture is used first, it will be seriously exposed. How to use aperture priority mode correctly? Overexposure is not caused by aperture priority mode, but whether your metering method is correct and whether the exposure compensation is adjusted back. If the light compensation and metering methods are incorrect, which exposure mode will lead to overexposure or underexposure.

Question 7: What are the advantages of aperture priority mode shooting? When you need to control the depth of field (that is, the clear range of the focused subject), you need to set the required aperture value in advance. For example, when shooting scenery, it is required that the close shot, the middle shot and the long shot are clear, so a small aperture is needed (the smaller the aperture, the greater the depth of field), and the shutter is automatically matched by the camera. In this case, the aperture priority mode can generally be adopted.

Question 8: What is the difference between shutter priority and aperture priority? The difference between shutter priority and aperture priority

The quality of the photo is related to the exposure, that is, how much light is needed to make the ccd get a clear image. Exposure is related to light passing time (determined by shutter speed) and light passing area (determined by aperture size).

Then, in order to get the right exposure, you need the right combination of shutter and aperture. When the shutter is fast, the aperture will be larger; The aperture is smaller when the shutter is slow.

Shutter priority means that the exposure value is calculated by the automatic metering system of the machine, and then the aperture is automatically determined according to the shutter speed you choose.

Aperture priority refers to the exposure value calculated by the automatic metering system of the machine, and then automatically decides how many shutters to use according to the aperture size you choose.

Manual mode means that you specify the aperture size and shutter speed yourself.

The mode dial M of Minolta A 1 is manual, S is shutter priority, and A is aperture priority.

The larger the aperture, the more light passes through per unit time, and vice versa. Aperture is generally expressed as the letter "F+ value", such as F5.6, F4, etc. It should be noted that the smaller the value, the larger the aperture. For example, F4 is larger than the aperture of F5.6, and the difference between two adjacent apertures is twice, which means F4 is twice as big as that passing through F5.6. Relatively speaking, the definition of shutter is very simple, that is, the time allowed for light to pass through the aperture is expressed by numerical values, such as 1/30 seconds, 1/60 seconds, etc. Similarly, the difference between two adjacent shutters is twice.

The combination of aperture and shutter forms exposure, which is not unique under certain exposure conditions. For example, the current normal exposure combination is F5.6 and 1/30 seconds. If the aperture is increased by one step, that is F4, the shutter value at this time will become 1/60, and this combination can also achieve normal exposure. Although different combinations can achieve the same exposure, the pictures taken have different effects.

The mode dials A/S/M of Olympus C750UZ are all * * * together.

The concept of "depth of field" is involved here. The so-called depth of field means that when the lens focuses on the subject, the subject and its scenery before and after have a clear range, which is called depth of field.

After understanding the basic concepts of aperture, shutter and depth of field, it is not difficult to use aperture limit or shutter first.

Aperture priority is to manually define the size of the aperture, and then use the camera's metering to obtain the corresponding shutter value. Because the aperture directly affects the depth of field, this mode is most widely used in ordinary shooting. When shooting portraits, we usually use large aperture and long focal length to blur the background and get a shallow depth of field, which can highlight the subject. At the same time, a larger aperture can also obtain a faster shutter value, thus improving the stability of hand-held shooting. When taking photos such as scenery, we often use a smaller aperture value, so that the range of depth of field is wider, which can make the distant and nearby scenery clear, which is also applicable when shooting night scenes.

Contrary to aperture priority, shutter priority is to obtain aperture value through camera metering when the shutter is defined manually. Shutter priority is mostly used to shoot moving objects, especially sports shooting. Many friends find that when shooting moving objects, the subject is often blurred, mostly because the shutter speed is not fast enough. In this case, you can use the shutter priority mode, roughly determine a shutter value, and then shoot. And the motion of the object is generally regular, then the shutter value can also be roughly estimated. For example, the shutter speed for photographing pedestrians is only1125 seconds, while it takes11000 seconds for photographing falling water droplets.

Canon G5' s mode dial is slightly different from other machines. M is a constant, AV is aperture priority, and TV is shutter priority.

In the case of aperture priority, we can easily control the depth of field by changing the aperture size, while in the case of shutter priority, using different apertures can achieve good shooting results for moving objects. Both should be used flexibly to meet our shooting needs in different situations.

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......& gt& gt

Question 9: When is the newly bought D7 100 SLR camera suitable for aperture priority mode? How to use it? Aperture priority mode means that you only need to control the aperture, and the shutter speed will be automatically determined by the camera. Suitable for use when the depth of field needs to be controlled. The scene with large aperture depth of field has good blur effect, while the scene with small aperture depth of field is large, and the clear range of the picture will be larger.

How to operate depends on what camera you use. I suggest reading the instructions. I am too lazy to read the instructions, just watch the video teaching. I recommend interesting visual courses, taught by teacher Lei Bo, and many free courses, which are quite good. Pure hand tour, please adopt!

Question 10: How to use the aperture priority mode of Nikon d7000? Just select AV on the turntable of the camera.

Aperture priority is to meet the brightness condition before adjusting the shutter speed during SLR exposure.

Choose aperture priority mode, and the picture will not be black or dark.

However, the shutter speed is subordinate to the aperture, which is very unfavorable for snapshot.

Even in dark places, the aperture is the first choice, and the shutter may be unbearably slow.

Therefore, the priority of leveling aperture is more appropriate, and the priority of snapshot aperture is not appropriate.