What are the similarities between digital cameras and traditional film cameras?

In the traditional film camera, the scene is exposed on the film by pressing the shutter, developed into a negative image, and then made into a positive image on photographic paper.

Traditional film cameras, whether cameras or films, have many different specifications. There is a 135 camera, and a roll of film can shoot 24 mm x.

36 photos of 36 mm screen (there are also 24 photos); There is a 120 camera, and a roll of film can shoot 60 mm x.

70 mm photo 10. In addition to 135 and 120 cameras, professional photo studios also have cameras and films that can shoot loose pages. There are 4-inch, 6-inch, 8-inch and 12-inch specifications, and large professional photo libraries also have strip transfer and film winding (camera 10 inch, film 10 inch wide, levelness 30 inches, 40 inches to 150 inch). When shooting, the characters are arranged in a circular arc, and the camera is equal to the horizontal longitude of the middle character. The camera starts to rotate from the left end, and the film moves synchronously for exposure.

Film has different sensitivities, such as 100 degrees, slow photosensitive speed, fine image particles, 200 degrees, 400 degrees to 160 degrees, fast photosensitive speed and coarse image particles. People usually use 100 degrees and 200 degrees.

Digital cameras include SLR cameras and "fool" cameras, which are similar in appearance to 135 cameras.

There is a viewfinder screen on the back of the digital camera, and all kinds of scenes in the field of view of the lens can be displayed and watched on the screen. After the shutter is pulled down, the scene is still on the screen and transferred to the memory card (chip). People can look back at the pictures taken one by one on the screen, and those who are not satisfied can be deleted. You can also plug the camera cable into the computer or TV and watch it on the screen.

The clarity of photos taken by digital cameras depends on the number of images. For example, 8-inch and 10-inch photos can be enlarged to 2 million and 3 million pixels, and 6 million pixels can be enlarged to make the image clear.

Digital cameras and film cameras are the same in lighting, composition and framing.

More information about photographic equipment and skills can be found in the photography forum, a novice exchange area of Longshe Tianxia Photography Group.