Questions and answers about pornography and illegal publications

Photo quiz questions 1. Some questions about the basics of photography

1. A is brightest and D is darkest

2. D

3. f=5mm The focal length of the lens is 5mm 1:1.8. The maximum aperture of this lens is 1.8

4. What is the depth of field?

a: the negative can form a clear plane image of the space scene, and the axial range of the scene is called the depth of field.

the larger the aperture, the smaller the depth of field; The greater the object distance, the greater the depth of field; The greater the focal length, the smaller the depth of field.

5. These represent ISO sensitivity numbers

6. Incorrect white balance will affect the color temperature balance of the photo, which will lead to the photo not actually reflecting the accurate situation of the taken picture.

7. Digital zoom is done according to the body of digital camera, and optical zoom is done by the lens of digital camera. Broadly speaking, optical zoom has little influence on the imaging quality, and using digital zoom will increase the signal-to-noise ratio of photos.

8. The first method is to fill the light with a flash, and the second method is to open the aperture, slow down the shutter and improve the ISO speed.

9. Aperture priority means that you first set an aperture number, and the camera automatically adjusts the shutter number according to the photographed situation to achieve accurate exposure. Shutter priority means that you set a shutter number yourself, and the camera automatically adjusts the aperture number according to the photographed situation to achieve accurate exposure. The applicable occasions are not fixed, and they are used according to their actual needs.

2. I want to hold a quiz on the basic knowledge of photography and beg for some simple basic knowledge of photography

1. Multiple-choice questions (please choose the answer that you think is correct, and only one answer can be selected for each question) 1. When shooting with a digital camera in daylight white balance, the shadows in the snow appear slightly □ A, blue □ B, yellow □ C, and blue at high sensitivity. It turns yellow at low sensitivity. 2. Shooting with sunlight-type retroreflective sheeting without any filter under incandescent lamp conditions, the color tone of the image will be □ A, □ B, □ C, and the high-sensitivity retroreflective sheeting will be blue, while the low-sensitivity retroreflective sheeting will be red and yellow. 3. Color temperature is □ A, one of the white balance properties of digital camera □ B, and one of the properties of light source □ C, both of which are 4. Shooting the sunset with digital camera. If you want to get the color feeling at sunset, you should set the white balance to □ A, auto white balance □ B, sunlight white balance □ C, incandescent white balance 5. When taking photos with autofocus lens, except macro lens, Use the autofocus function □ A, no manual focusing accuracy □ B, more accurate than manual focusing □ C, and no manual focusing specialty. 6. In order to freeze a person (1.3 m/s) walking briskly in the parallel direction of the film, The slowest shutter speed can be set at □ A, 1/25 sec □ B, 1/5 sec □ C, 1/1 sec. 7. The noise of digital photos is mainly manifested in □ A, when high light and shadow are dimmed □ B, when dark shadows are brightened □ C, both of which are 8. When shooting smooth snow scenes, Reference should be made to exposure meter reading □ A, minus exposure □ B, plus exposure □ C, without adding or subtracting 9. The main purposes of applying the "right exposure" technology are □ A, accurate exposure □ B, noise reduction □ C in the later stage, and contrast increase 1. The main causes of machine shock are □ A, shutter vibration □ B, reflector vibration □ C, and not holding the camera steady. Increasing shutter speed □ B, using reflector pre-lift function □ C, using tripod 12, and other conditions unchanged, the longer the lens focal length, the larger the depth of field □ A, the smaller the depth of field □ B, depending on visibility 13 and aperture f/2, the amount of light accepted by the lens is □ A, 4 times □ B and 16 times □ C when aperture f/8.

I should put myself in a car □ A, a position that passes horizontally in front of my eyes □ B, a position that faces me □ C, and all of the above. 15. The aperture range of the exposure meter readings measured in highlights and shadows is f/16-f/2, so if you use a digital camera, in order to get more details, The aperture should be set to □ A, f/11 □ B, f/8 □ C and f/2.816. If the sensitivity is changed from ISO4 to ISO1, in order to obtain the same exposure, Exposure needs to be increased by □ A, 1 □ B, 2 □ C and 4 □ 17. Polarizers can be used to weaken □ A, metal reflection □ B and leaf reflection □ C, all of which are 18. Backlight is □ A, light from behind the subject □ B, light from the front of the lens □ C, all of which are 19. hyperfocal distance refers to □ Maximum depth of field 2. Shadow overflow refers to □ A, too many dark details to be recorded □ B, too dark to be recorded □ C, and too much noise caused by too high sensitivity. 21. If the exposure meter reading of the white side of the gray card of the New York Institute of Photography is 1/1 second, f/8, which exposure combination can obtain satisfactory exposure □ A, 1/4 second, f/8? F/8 □ C, the white side that has never been used 22. When shooting a long-distance scene in the same position, the size of the image shot with a 1mm lens is □ A, 1.4 times□ b, 2 times□ C, 4 times 23 of the same image shot with a 5mm lens. The total light output time index of a flash is 4. If other conditions remain unchanged, the output power is reduced to 1/4. The flash index will be □ A, decreased to 1 □ B, decreased to 2 □ C, and kept unchanged. 24. The flash index of a flash lamp is 4 at ISO1. If other conditions remain unchanged, only the sensitivity will be increased to ISO2, and the sensitivity of the flash lamp will be increased to 8 □ B, 56 □ C, and still be 425. When the zoom cap position of a flash lamp is 35mm. If other conditions remain unchanged, only the position of the lamp cap is changed to 7mm, and the sensitivity index of the flash will be □ A, □ B, □ C, and 26. Under the same conditions, the higher the sensitivity, the finer the image particles will be □ A, □ B, □ C, not necessarily 27, and other conditions are the same. The depth of field obtained by shooting with f/2 and 5mm focal lengths is about □ A, 1/2 □ B, 2 □ C and 4 □ 28 that obtained by shooting with f/16 and 2mm focal lengths. When shooting a portrait with backlight at night, it is measured that the exposure combination with normal background is 1/6th second, f/4, the distance between the person and the camera is 4m, and the flash index of the flash is 32. We use the flash to fill the light of the characters, which means that the exposure combination should be set at □ A, 1/3 second, f/5.6 □ B, 1/15 second, f/8 □ C, 1/8 second, f/1129. Use a digital camera with a focal length conversion factor of 1.5 to take photos. If the focal length of the lens is 5mm, in order to shoot clearly, The slowest shutter speed should be □ A, 1/5 sec □ B, 1/8 sec □ C, 1/1 sec. 3. The function of auxiliary light is □ A, making the level of the photo clearer □ B, reducing the light ratio □ C, and increasing the light ratio 31. If we use the built-in spot metering function to measure light and focus on the focus with the center, Then at this time, metering and focusing are the same thing □ B, not the same thing □ C, and it is not clear. 32. Taking digital photos in RAW format □ A, white balance □ B is needed, white balance □ C is not needed, automatic white balance must be used. 33. Reflective umbrellas can produce □ A, direct light effect □ B, diffused light effect □ C, and which effect depends on the type of light bulb. 34. We need to use the noise reduction function in a digital camera □ A, when using a large aperture □ B, when using a long exposure □ C, when using a telephoto lens □ 35. The light generated on cloudy days is □ A, inappropriate light □ B, suitable light □ C for outdoor portrait shooting, and whether it is appropriate depends on the white balance setting when shooting. 36. When shooting a literary performance, if the stage lighting is dark, We can □ A, use flash □ B, use high sensitivity □ C, and both of the above can be done. 37. If the light is not enough, we should □ A, use flash to fill the light □ B, use high sensitivity □ C, and both of the above can be done.

3. I have some common sense questions about photography.

First of all, lenses can be roughly divided into wide-angle lenses, macro lenses and headers. If beginners suggest buying a 35-15 lens, you can

You should learn the application and cooperation of aperture and shutter about exposure. For photos with normal exposure, the aperture should be small and the shutter time should be long, and the shutter time should be correspondingly short, that is, the light entering of the camera aperture should be controlled. Here, I want to explain to you that the aperture size is different from the aperture f value. A large aperture corresponds to a small aperture and a small aperture corresponds to a large aperture. The aperture size and the depth of field are also inversely proportional. A large aperture, a small aperture and a large depth of field, but for the aperture f value, the larger the f value, the smaller the depth of field, and the smaller the depth of field. < P > Secondly, it is not only possible for a SLR to take photos with bright artistic conception. You should learn how to use light and how to compose a picture. Photography is painting with light. Of course, good photos are inseparable from post-production. You can learn post-production. There are tutorials about photoshop on the Internet, and there are some well-known photography websites. Go in and have a look at it if you have something to do.

Well, good luck and welcome.

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