By the way, what does the dog head in the digital camera mean?

Cheap low-end lens, low sharpness, distortion, dispersion and other processing is not very good.

But the dog's head is a hundred times stronger than the lens of the card machine!

The principle of digital camera recording images on film through silver bromide's chemical changes is different from that of ordinary cameras. The sensor of digital camera is photosensitive charge coupled device (CCD) or complementary metal oxide semiconductor (CMOS). Before an image is transmitted to a computer, it is usually stored in a digital storage device (usually using flash memory; Floppy disks and rewritable compact discs (CD-RW) are rarely used in digital camera equipment.

Extended data:

superiority

1. You can see the picture immediately after taking a picture, which provides the possibility of remaking the dissatisfied work immediately and reduces the occurrence of regrets.

Just pay for those photos you want to develop, and other unnecessary photos can be deleted.

3. Color reproduction and color range no longer depend on the quality of the film.

4, the sensitivity is no longer fixed by the film, and the photoelectric conversion chip can provide a variety of sensitivity choices.

5, the product structure is relatively simple, the appearance is more exquisite, and the product is more and more portable.

6. The digital camera is simple, clear and easy to use.

disadvantaged

1. Due to the conversion between imaging elements and image processing chips, the imaging quality is less layered than that of optical cameras.

2. Due to the different technologies of image processing chips from different manufacturers, the colors of the imaged photos are different from the real ones.

3. Due to the lack of core technology in China, the later use and maintenance costs are high.