Regarding this, users can actually understand what it is by simply saying it to the e-commerce merchant when purchasing. For Sony, which has another product line called a single-digital camera, it is more accurate to call it a micro-camera. This year can be called the year of the single-digital camera, and many manufacturers have launched single-digital cameras. But it was difficult for me as a first-time camera buyer. Because we laymen had just learned what was going on with the SLR, and then the SLR came out, and for a while we were confused and didn't know what was going on. Today we will talk about the difference between a single camera and a SLR. Speaking of single-camera cameras, from a brand perspective, they do not refer to the same camera type. For example, Olympus mono camera refers to a mirrorless interchangeable lens camera. For Sony, it's a fixed translucent mirror camera. Similarly, for the mirrorless structure, each brand of camera has different names. Looks a bit messy doesn't it? Let’s look at the detailed breakdown. Many camera names are distinguished by the way they are viewed. For example, rangefinder cameras get their name from the rangefinder viewfinder. An SLR camera is a single-lens reflex camera. As the name suggests, an SLR camera has an interchangeable lens and uses a reflector to reflect the view. A twin-lens reflex camera is a dual-lens reflex camera. One lens is used for shooting, and the other lens is used for framing. It relies on a reflector to reflect the light from the framing lens to the focusing screen. For single-lens cameras, the framing method nomenclature is also used. Nowadays, when talking about single-lens cameras, everyone generally refers to mirrorless cameras. Mirrorless cameras feature no mirrors, electronic viewfinders, and an interchangeable lens. So Shanda means a single-lens electronic viewfinder camera. Currently, cameras that adopt this viewfinder method include: Olympus PEN series single-camera, Panasonic G series single-camera, Pentax Q single-camera, Nikon 1 interchangeable lens camera, Sony NEX series mirrorless single camera, Samsung NX series single-camera, As well as the Fuji LX single battery that has been confirmed to be released. No matter how each manufacturer names it, as long as it has no mirror, uses electronic viewfinder, and uses an interchangeable lens, it is a mirrorless camera, which is called mirrorless in English. It should be noted that single battery has different meanings for Sony. Although the Sony NEX series is a mirrorless camera structure, it is named mirrorless - a miniature single-lens electronic viewfinder camera. Because Sony has its own interpretation of the word "single camera" - a single-lens fixed translucent mirror electronic viewfinder camera. The structure of Sony's single camera is similar to that of traditional SLR. The difference is that the reflector of Sony's single camera is fixed and semi-transparent. This reflector allows a large part of the light to pass through itself to provide imaging to the CMOS sensor, and reflects a small part of the light. Go to the top of the camera to provide the viewfinder with a viewfinder. The viewfinder sensor converts this part of the light into a signal for the electronic viewfinder, allowing us to see the real-time image in the electronic viewfinder. Therefore, Sony's single-camera cameras are very different from what we usually call mirrorless cameras. Instead, they are close relatives of SLR cameras. At present, no other manufacturer except Sony has similar products, so for Sony's single camera, we only need to remember that it is a camera with an electronic viewfinder similar to an SLR structure. When purchasing glasses, it can be treated as a SLR.