What's the difference between entry-level and mid-range SLR cameras?

The machine body is light, small in size and has many sets of machines. The material is engineering plastic, which is relatively slow, mostly 3 sheets per second.

Medium machine:

Heavy, large, mostly magnesium alloy fuselage, few sets of machines, usually with their own lenses. The speed is relatively fast, usually 5-8 sheets per second.

1. Material selection: the low-end is generally engineering plastics, while the high-end is made of metal materials or even magnesium alloy light metal materials, which is more durable.

2. Service life: the optical shutter has obvious indicators, 50,000 times at the low end, 0/0-/0-0/5,000 times at the middle and high end, and so on.

3. The responsiveness of the camera: For the discovered scenery, whether the camera can process the photographer's intention into an image in time at the moment of capturing, there is a gap between the low-end camera and the high-end camera.

4. Resolution: The same sensor CMOS, the same image processing software, the same lens, the same exposure parameters, whether the film can achieve the photographer's intention is immediate.

5. Manipulation ability: The low-end camera has a good degree of automation, but the manual function is far less humanized than the high-end camera.