Traditional Culture Encyclopedia - Photography major - Does the lens have the best shooting distance?

Does the lens have the best shooting distance?

50mm fixed focus, the subject is a person, and the best distance between the subject and the lens is 2 ~ 3 meters.

The subject is a 10-meter-high tree, so the best distance from the camera is about 20 meters.

If the subject is 40 trains, the best distance from the camera is 300 meters.

If the subject is the moon, you still stand on the earth and shoot directly.

There is no other answer to your question, but this is the only answer. Because many photographers know nothing about this problem.