Japanese cameras sweeping the

Photo by RRT877 (licensed under CC0 1.0)

The reason why Japanese cameras are taking over the world market is because of their sensors and lenses.These are the two properties of digital cameras.Light must not be refracted or diffusely reflected inside the lens, and the surfaces must be uniform.This affects the amount of light taken into the camera.

A lens with a high F value is dark and cheap, and if the F value falls, it takes in light and becomes expensive.The sensor is the one that receives the light taken in to convert it into digital data.The smartphone lens is close to the sensor and doesn't seem to have much effect, but it still changes.A single-lens reflex camera used for TV reporting and News paper,Magazine and so on or a lens with a high F value is useless.

That's why the No Japan movement in Korea is filmed with a Japanese camera.