What is a SLR camera and what are its advantages?

1, SLR digital camera refers to a single-lens reflex digital camera, that is, DSLR (digital single-lens reflex). In this system, after the light reaches the mirror through the lens, it is refracted to the focusing screen above to form an image. Through the eyepiece and pentaprism, we can see the scenery outside in the observation window. In contrast, ordinary digital cameras can only see the captured images through the LCD screen or electronic viewfinder (EVF). Obviously, the directly seen image is more conducive to shooting than the processed image.

2, you can change the lens at will to achieve different photo purposes. Then, because both framing and photographing are carried out with one lens, framing is realized through several reflective processes from the lens to the viewfinder, so compared with the card machine, the parallax of framing is eliminated and the effect of what you see is what you get is achieved. More importantly, the photosensitive chip of SLR camera is bigger than other cameras, so the quality of taking pictures is very good.