Is the aperture bigger, the better?

Tang Ming _ 1982 may have said it backwards. The larger the aperture (the smaller the number, the larger the aperture), the smaller the depth of field. ...

The lens also has its own personality and its own optimal aperture value. The simple judgment method is: take the average of the maximum aperture value to the minimum aperture value (usually at F8- 1 1). ...

The actual maximum aperture value of 17-40 F4 is indeed more than F4, but professional (red circle) lenses have quality requirements for imaging, and the aperture value change greater than F4 is just discarded (the limit aperture is not conducive to imaging), so 16-35 F2.8 will perform better in F4.

The aperture of an excellent lens is one level (even half a level), and the price will be much higher, because raw materials and art will be much higher.

Is the aperture bigger, the better?

Aperture has a lot to do with depth of field, for example, you have to highlight the details of people at certain moments.

Depth of field is the range of object distance that can form a clear image on the image plane when shooting a limited distance scene.

The larger the aperture, the smaller the depth of field, and the smaller the aperture, the greater the depth of field.

Many photos of models come out with props such as auxiliary lights or soft umbrellas.

Single-lamp photography has many skills.

As for stainless steel and crystal, due to the reflective characteristics of the object itself, polarizers can be used to reduce the reflective light and darken the color if necessary. Crystal can also be matched with soft box, starlight mirror and so on. .

What matters when these works come out is the lighting.

Is the aperture value bigger or smaller?

First understand a concept, the aperture number (f) is inversely proportional to the aperture. That is, the smaller the f value, the larger the aperture. The larger the f value, the smaller the aperture.

Advantages of large aperture:

1. A large aperture can increase the shutter speed, which is more conducive to hand-held shooting when the light is insufficient;

2. When shooting moving objects, the large aperture is beneficial to cooperate with the high-speed shutter to "solidify" the moving objects;

3. One of the most fascinating features of large aperture is that when shooting with large aperture, the subject on the focal plane is clear, while the Jiao Wai is blurred (that is, people often say blur). To put it bluntly, if you want to make the clear place clear and blur the unimportant place, you can use a large aperture, which is conducive to highlighting the subject and is often used to shoot portraits, such as outdoor portrait art photos.

Learn more about aperture:

To understand what an aperture is, we must first understand the relative aperture. The relative aperture is the ratio of the aperture diameter of the lens to the focal length of the lens. If the maximum aperture diameter of a camera lens is 25mm and the focal length is 50mm, then the maximum relative aperture of this camera lens is 1/2. The reciprocal of the relative aperture is called the aperture coefficient (also called F value) of the lens. Then according to this definition, the maximum aperture in the above example is 2.0. Because the aperture number is the reciprocal of the relative aperture, the smaller the aperture number, the stronger the light passing ability of the lens. F value is a particularly important parameter for camera lens. The smaller the f value, the wider the scope of application of the lens.

When people choose lenses, of course, they must first choose products with strong light transmission ability. Because the manufacturing process of large aperture lens requires higher requirements (when the aperture is large, the requirements for reducing the distortion of the edge image field are higher), the larger the maximum aperture, the higher its value under the premise of little distortion difference. For professional lenses, if the F value is between 1.8 and 1.4, the price will often rise by several thousand yuan. Small aperture is relatively easy to realize. The luminous flux can be reduced by adjusting the aperture blade in the lens and reducing the relative aperture, so the minimum aperture is generally not a problem. Therefore, when choosing a digital camera, if a variety of cameras are equally matched in technical indicators, you can give priority to the one with a small F value.

Is the aperture good or small?

You go to buy a lens and see that it has F2.8, 3.5 or F4.2 and so on. This number is the professional name of the aperture, not the aperture size number. Anyone who studies photography knows that the smaller the value, the larger the aperture. Conversely, the larger the value, the smaller the aperture. For example, F 1.4 and F2.8 are lenses with relatively large apertures. Of course, if you have money, you should buy this kind. The larger the value of F3.5, F4.2 or F5.6, the smaller the aperture. The landlord should be careful not to be confused by the size of the numbers when buying. To be honest, the large aperture lens is really great. You can give full play to your creativity and shooting techniques to achieve the best color reproduction of photos. If you buy a lens with a small aperture, the depth of field and color reproduction are worse than those with a large aperture, because who doesn't want to take photos with fast shutter speed, sufficient light input and clear photos? A large aperture lens can help achieve these effects, while a small aperture lens is relatively poor. The depth of field is the blurring effect of the background or foreground before and after focusing, and the aperture size will control the depth of field accordingly: the smaller the aperture, the worse the blurring effect, because the smaller the aperture, the clearer the background. Finally, the backstage is almost like a fool card machine, haha, can you understand it?

The principle of constant aperture is that no matter how far your lens focal length is stretched, the aperture value is set by the photographer. Generally speaking, for example, if your lens has a medium-long focal length of 18-200 or 70-200, and you set the aperture value to F2.8 when shooting lotus flowers in the water, the aperture value you set will not change no matter whether you zoom to 18, 70, 135 or 200. If you don't believe me, try using an unstable aperture. When you zoom in on a distant scene, your aperture value must be changing, even if you use M-file by hand. M gear can use a constant aperture when it is purely manual. No matter how the focal length changes, the aperture value will always be the value you set.

The smaller the aperture value of SLR lens, the better, but how much is the most suitable for normal use.

This depends on the combination of your current shooting environment and what you want to express.

The smaller the aperture value, the larger the aperture, and the more blurred the effect. Relatively speaking, there are fewer and fewer details and the picture is cleaner and cleaner.

Is the camera aperture f/ higher or lower?

The smaller the aperture f/***, the better. The smaller the f value, the greater the luminous flux. For example, the luminous flux of F 2.8 is more than twice that of F 4, in which 2.8 and 4 are the above-mentioned * * *, and 2.8 is a large aperture relative to 4. Cameras, like video cameras, all have lenses, and having lenses involves the size of the aperture. The general camera basically doesn't consider this factor, because where it is positioned, the price is there, and you can't choose much performance. However, if the aperture is large and the luminous flux is large, the exposure time can be shortened, which is of great benefit to dark light shooting. Therefore, if you can choose a camera, it is best to have a larger aperture. All shots have this problem. Answer your question as low as possible. I hope it works for you.

Is the aperture range larger or smaller?

You already know one advantage of large aperture, which can improve the quality of night shooting. Another advantage of a large aperture is that it can blur the background and highlight the focus theme, which makes people feel good. Small aperture can be used to shoot scenery, which can make people take in everything in a glance and shock their eyes. It is not simple that the bigger the better, nor the smaller the better. You have to figure out what you want to shoot and set the appropriate aperture, which is the right thing.

How to choose a lens? The smaller the aperture, the better.

Just a reminder: Nikon's 50 1.4 and 85 1.4 can only focus very accurately if D700 and D3 are connected, and the focusing accuracy and speed will be greatly reduced on the low-end fuselage.

The aperture can be adjusted, but generally the pursuit of large aperture, small aperture is not so big.

Usually buy a zoom, you are such a rich rookie. ...

It is recommended that you match the lenses in the following order:

Quan Huafu fuselage: (D700, D3) first match 24-70f2.850f1.470-200f2.814-24f2.818-200f3.5-5.6 (this lens is in APS format), and then consider your 880. ...

APS fuselage: (D300-D90) 18-200 f3.5-5.6, 50 f 1.4, 17-55 f2.8, 70-200 f2.8, and then buy 85f1. ...

D40, D60, etc ... Save money first. ...

Canon is not very familiar with it, and the lens selection is roughly in this order.

Is the aperture larger or smaller? 1.8 and 2.4

Must be 1. Eight! Depth of field depends on aperture! And it is best to keep the aperture constant!

What is the aperture? How sensitive is it? The bigger the better? Or the smaller the better? What should I do when I am old? So what if it's small Seek a detailed explanation.

I will try to make you understand in the simplest words:

The aperture is a hole in the middle of the lens, indicating the amount of light entering. A large aperture can make the photo brighter, and it can also blur the clear background of the subject. On the contrary, the small aperture has less light, the photo is dark, the subject is clear, and the background blur is not obvious. I can easily understand this extreme example.

The aperture size depends on the actual shooting light conditions and the effect that the photographer wants.

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Sensitivity is the sensitivity of the photosensitive element of the camera to light. The higher the sensitivity, the less light will make the photo brighter. On the other hand, the lower the sensitivity, the less sensitive it is to light. It needs more light, that is, a large aperture, and more time (that is, shutter speed, that is, exposure time of photos) to make photos light up;

Sensitivity is generally improved when the shooting environment is poor in light, the aperture can't be bigger (or the effect is not appropriate), and the shutter speed must be fast. For example, the action freeze-frame effect in the dark

ISO sensitivity is a double-edged sword. The lower the sensitivity, the cleaner and smoother the image quality. The higher the noise, the worse the color. Therefore, it is adjusted according to the strength of the high-sensitivity image quality of the fuselage and the actual situation.

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In fact, to learn photography, you should first understand the shutter and aperture, then understand the sensitivity, and then study others. Such steps are standardized and not easy to be confused, and once the first three points are thoroughly understood, the later photography knowledge will be absorbed and digested by leaps and bounds.

Personal advice, for reference only.