What's the difference between this camera and an ordinary camera?

Is this camera good for taking photos? -this depends entirely on personal preferences and aesthetic orientation. There are many people who like it, and there are many people who don't like it ... Many people think it is heavy, big and stupid ... (mostly MM's comments on SLR)

3. What's the difference between it and an ordinary camera? -Let's not discuss whether the term "ordinary camera" is debatable here ... 135 single-lens reflex camera was designed in the 1940s and 1950s, and camera manufacturer Axalta is a leader in this field. In the early 1950s, 135 frames were put on the market by the eyewear factories originally belonging to Zeiss, Germany, which belonged to East Germany and West Germany for historical reasons of war. The one in East Germany is "Pan Taikang" ... Almost the only original intention of designing this camera (that is, the difference between this camera and other cameras) is to use the same lens for framing and shooting, which is the so-called "what you see when you shoot", which solves the parallax problem caused by dual-lens reflective camera and external framing. That is to say: it's just that the structure of the framing method is different.