How do I adjust the aperture? How do I adjust the aperture size?

The aperture is a device used to control the amount of light that passes through the lens and enters the photosensitive surface of the body, which is usually inside the lens. The aperture size is expressed by the f-value, the larger the value, the smaller the aperture aperture, and the smaller the value, the larger the aperture aperture. The smaller the f-number of the aperture, the more light will enter in the same unit of time (because the aperture of the aperture is larger), and the amount of light entering the upper stage is just twice that of the next level, for example, the amount of light entering the aperture is doubled when adjusted from f8, and we also say that the aperture is opened one step wider.

The aperture is like a faucet. If you turn it on, you can get a lot of light in; If you turn it down, you'll only get less light. From top left to bottom right, aperture sizes are when the aperture is off, f/11, f/8, and f/4.

From this, we can also understand that the larger the aperture, the stronger the light projected onto the CCD sensor of the digital camera. When we buy a lens, the size of the aperture is a very important factor, and it directly affects the height of the lens, the lens with a large aperture is much more expensive than those with a small aperture aperture, and the large aperture can be better performed in a dark environment, and can get more light without changing the shutter speed, so as to get normal. Nowadays, the aperture of professional zoom lenses can generally be opened, and prime lenses such as Canon 50mm can be opened!

In addition to getting more light, a large aperture can also obtain the effect of shallow depth of field (the so-called depth of field, that is, when the focal length is aimed at a certain point, the front and back can still be clear range), the larger the aperture, the shallower the depth of field, to put it more vulgarly, the subject of the shooting is clear, and the background is blurred, so as to highlight the subject, the smaller the aperture, the greater the depth of field, that is, the front and rear scenes are clearer, suitable for taking landscape photos. In addition to controlling the depth of field is related to the size of the aperture, it is also related to the focal length of the lens and the shooting distance.

Aperture disc or concentrator under the microscope lens holder The aperture disc is attached to the underside of the stage, and there are several holes of different sizes on the disk, which can be rotated to select the appropriate hole to adjust the intensity of the light.

How do I adjust the aperture to get a satisfying shot? Example shooting takes you through the aperture.

1. Prepare your camera first.

2. Then adjust the auspicious song to the aperture priority.

3. The aperture can be adjusted by turning the gears of the circled part left and right.

4. The circle is the value of the aperture, and the maximum or minimum value of the aperture is not necessarily, because the lens is different.

5. You can adjust it to 5 first, and the default of the camera is 5 at the beginning, so take this value and shoot it first.

6. Adjust to 13 and shoot again.

7. You can take a look at the comparison chart. Select the aperture size.

First of all, it is necessary to be clear about the classification of lens aperture, and the aperture of a lens can be divided into continuous aperture and discontinuous aperture. The continuous aperture is infinitely adjustable and can be adjusted anywhere between stops. The discontinuous aperture is adjusted by one, one, one or third stops of the aperture, and there is a clear positioning feel when adjusting.

Some brands of autofocus lenses do not have an aperture adjustment ring, and rely on the camera's aperture adjustment mechanism to adjust, such as Canon's EF series lenses and Nikon's AF-G series lenses.

When adjusting the aperture, the aperture is always at the maximum aperture. Only when the shutter button is pressed and the shutter is released, the aperture will automatically shrink to the set f-factor, and the aperture will return to the maximum aperture after completion.

Single-camera phones: The aperture size is fixed and cannot be adjusted.

Dual-camera phone: Enter the dual-camera bokeh mode, tap the screen to focus, and then press and hold the aperture icon to slide up and down to achieve different degrees of bokeh effect.

Here's how to adjust the aperture:1. Prepare your camera first.

2. Then adjust to aperture priority.

3. The gear of the first circle of the circle can be adjusted by turning it left and right, and the place where the second circle comes out is the value of the aperture, and the maximum or minimum value of the aperture is not necessarily, because the lens is different. I'm the biggest one.

<>4, we can adjust to 5 first, my hungry camera was 5 by default at the beginning, let's take this value first.

5. You can take a look at the effect of this value, and the back is more blurry.

6. Adjust to 13 and shoot again.

7. Look at the effect, this is clearer.

8. You can take a look at the comparison chart.

Aperture is a value of a DSLR camera, the same as the shutter and ISO, different apertures can get completely different effects, if you use a large aperture to take pictures, you will get a very blurred**, which looks very meaningful.

1. Adjust the SLR camera to the aperture priority mode, and see that the corresponding F+ value of the screen will change by adjusting the main dial of the camera, so that the aperture value of the camera can be adjusted.

2. Set the aperture value in the aperture priority mode, and the camera will automatically match the corresponding shutter parameters to complete the correct process. The figure below shows the adjustment of the aperture value in aperture priority mode.

3. The value on the screen represents the value of the aperture, you can turn the wheel to adjust the size of the aperture, when rotating, rotate clockwise to increase the aperture, and counterclockwise to decrease the aperture.

4. The larger the value, the smaller the aperture, and the smaller the value, the larger the aperture. It can be done according to the actual situation.

First of all, adjust the shooting file of the camera to the A file, the A file represents the aperture priority level, you can adjust the aperture, find the shoulder screen of the camera, and generally fluctuate the shoulder screen to adjust the size of the aperture, control the amount of light entering and adjust the brightness and darkness. A smaller f-number indicates a larger aperture, and the larger the aperture of the lens, the larger the aperture of the lens, which can also increase the cost and difficulty of production.