Why you should use viewfinder?

Why use viewfinder? Estimated now just contact with photography users are more accustomed to watching the screen viewfinder, do not understand why users like to use SLR eyes facing viewfinder. Feel it is loading force, the screen viewfinder is not more convenient? Every time a camera is released, we focus more on the sensor, focusing system, metering system, and even the back of the screen are thoroughly studied, the viewfinder is ignored. The wolf did not think that you want to know the role of viewfinder composition is to determine the scope and layout of the picture, almost all the first lesson is from the beginning of composition, so you do not know some secrets, the future is to eat big Loss Photography is a matter of concentration, and when you realize the moment when you press a shutter, you are the beginning of photography. The role of viewfinder not only looks professional, but it allows you to focus more on filming, but not be distracted by other opera...