What's the difference between SLR and film? What is the principle of SLR film machine?

It seems that the film machine is relatively simple when shooting, but it is more troublesome when processing images, right?

It is not easy to take pictures with a film machine, and there is no mode for taking pictures with a film machine. Before taking pictures, we mainly consider the film, whether to use sequins or sunlight (color temperature), reverse film or negative film, fast film or slow film (sensitivity). After loading the film, the operation of the film machine is very simple There are not so many buttons on the digital machine now. The dials of the film machine are all digital, mainly including adjusting the sensitivity and shutter speed. There are aperture ring, focus ring and zoom ring on the lens. If the camera is compared to the computer language, then the film camera is the C language, which can operate freely and give full play to your imagination. Of course, the premise is that your technology is good enough. The film is also post-processed. Darkroom technology is even more colorful than PS today. You can adjust the proportion of liquid medicine, adjust the angle of magnifying glass, modify the bottom plate with scissors or razors, color the bottom plate with brushes, and even put hundreds of bottom plates together to enlarge high-definition photos. In short, the photographer's idea is his own PS.

Does it have to be a darkroom? Can you plug it directly into the computer?

There must be a darkroom for developing film, and only red light can be used in the darkroom to prevent film exposure. The film machine has no USB interface because it is not needed. Some film machines don't even need power. They are completely mechanical.

Can Nikon d7000 shoot that kind of film feeling?

Nikon D7000 can't shoot the feeling of a film machine, and it can only be PS in the later stage, but some filters from the film machine era can be added in front of the camera.

Can you tell me about the imaging principle of film?

The imaging principle of film is simply three parts: pinhole imaging, lens refraction effect and silver salt effect.

During the Renaissance 500 years ago, people discovered the black box effect, which is pinhole imaging.

The refraction effect of lenses was discovered by the ancient Romans, and scholars with poor eyesight found that the original blurred words could be seen clearly through spherical glass.

The silver salt effect was discovered by scientists in the18th century, that is, the silver salt will gradually turn black in the sun.

The above three effects constitute the initial model of the camera.

How much are all good film machines? Which brand is good?

At present, the price of film machine is very wide, ranging from tens of yuan to millions of yuan. A few tens of yuan is naturally a fool film machine bought on Taobao, and the collection level of several million yuan can only be seen at the auction, and the camera is sold to Lin Hafu. In fact, there are many existing movie cameras, most of which are scattered in newspapers, magazines and studios. Although they have handled many old film machines, they will collect those classic models, such as Nikon F series and Leica series. These machines can make good films whenever they want to use them. Many families also have film machines, but the quality will be slightly inferior, mostly at the bottom of the box, rarely used, such as domestic two birds, Oriental, Ricoh, Minolta and so on.

Finally, cut into the theme, SLR and film are actually two different categories.

SLR is a single-lens reflex camera, including film SLR and digital SLR.

There are many cameras in the film machine era, and SLR is just one of them.

Let me list the types of film machines for you.

There are many kinds of traditional cameras. What I have listed below may be a bit messy, but it is definitely specific:

1. 120 cameras, including dual-lens reflex (seagull 4), folding (seagull 203) and single-lens reflex (Great Wall DF).

2.220 camera, using 220 film, the film length is doubled compared with 120.

3. 135 cameras are currently divided into paraxial cameras (Phoenix 205) and single-lens reflex cameras. Typical domestic cameras are Seagull 205, Dongfang S3 (baseline ranging) and Great Wall SZ (clockwork).

4. Half camera, produced in 1950s, still uses 135 film, but its size is 18*24mm, and Ricoh auto half.

5. The127 camera is a miniaturized 120 camera with a size of 4*4cm, representing the German Rolleiflex 44.

6. 126 camera, using 126 film, the actual picture is 28*28mm, which was later replaced by 1 10 camera.

7. 1 10 camera adopts 1 10 film with the size of 13* 17mm. Because the camera is small, the 126 camera was replaced. Stands for Pantex auto 1 10.

8. Disc camera, Kodak Company 1982 mass production, disc diameter 2.5 inches.

9. 16mm camera, represented by MECO 16SB in West Germany and Minolta 16MG in Japan, was later replaced by 1 10 camera.

10.9.5mm camera, using 8* 1 1mm film, produced by Minox Company of West Germany and Yaska Company of Japan, used in special departments.

1 1. One-step imaging camera, 1948 American Bora Company has successfully developed, which can shoot film directly in ten seconds to dozens of seconds.

12. The combined camera is huge and uses 4*5 ",5*7" and 8* 10 "negatives. A typical camera is the Lin Hafu Cardin series.

Except for 120 camera and 135 camera, the output of other models is relatively small, which is very collectible.

Please refer to the China Photography Publishing House 1992 version of the photography manual.

What other lomo cameras, ID cameras, tilt cameras and camera cameras are not listed one by one.

Nowadays, digital cameras are all the same, which makes people look the same. Divided into SLR digital camera and card machine (side view), and divided into Quan Huafu and half-frame, not to mention.