Heroes who know photography, help me! Our homework this time ... not even. Help me solve it. Thank you. .

Children's shoes, our homework is the same, and you just asked. I highly doubt that we are in the same class. . .

The following is the answer of a strong man in the class.

1。 How to distinguish the grades of cameras

The grade of camera is mainly distinguished by camera lens, optical elements and recording format. HD is better than SD, and CCD is better than CMOS. The larger the aperture of the lens, the smaller the zoom range.

2。 What is the difference between different cameras in adjusting white balance?

(MD 10000) Adjust the zoom lens of the camera to the wide-angle end, and cover the lens tightly with a white lens cover (or white paper); Adjust the white balance to the manual position, aim the lens at the clear sky, but don't direct the sun, and zoom in until the whole screen turns white; Press the white balance adjustment button until the manual white balance sign in the viewfinder stops flashing, and then the manual white balance adjustment is completed. (PD 190) Adjust the camera to the wide-angle end, find a white object (or white paper) in front of the camera, adjust the white balance of the camera to manual control, then adjust the white balance adjustment button to the custom white balance, and press and hold the button until the white balance sign stops flashing, and the setting is complete.

3。 What are the technical points to achieve the effect of small depth of field?

First, set the camera to manual control, set the maximum aperture, and then push the focal length to gradually reduce the depth of field of the camera.

4。 How to achieve focus conversion?

First, set the camera to manual control, and then change the focus ring to achieve manual focus and change the focus.

5。 How to enhance the expressive force of fixed pictures?

When shooting with the wide-angle camera, you can choose different composition methods according to different subjects, and pay special attention to the stability of the picture. It is best to shoot with a tripod or rocker arm.

Its expressive force is mainly reflected in the stability of the picture, the composition is similar to photography, the light changes little, it can control the depth of field well, highlight the static environment and people, and the audience can concentrate and record the changes of moving objects.

6。 What are the expressive forces of the three kinds of light?

Divergent light: The light projected by the light source from the front of the subject will make the subject appear bright, suitable for shooting high-profile objects, and the picture is clear and elegant when shooting scenes.

Side light: the light projected from the side of an object by a light source. When the side light shines on the subject, it will make the subject appear layered, produce contrast between light and dark, and show the three-dimensional sense of the subject. It is the ideal light for us to shoot landscapes, people and buildings.

Backlight: the light projected from the back of the subject by a light source. Backlighting will make the outline of the subject obvious. By controlling the exposure, the subject can be clearly separated from the background. Backlight is mostly used to shoot the morning light, sunset glow, snow scene and water waves in the landscape. When shooting a character, it can increase the three-dimensional sense and space sense of the character.