What visible light do we have at present?【目前我们有哪些可见光？】

Ariel-Topotek

A: Fixed focus, 5X, 10X, 20X, and 30X are optical zooms, 4K is equipped with 7x digital zoom, and others are equipped with 9x digital zoom.

答：定焦，5X、10、20X、30X为光学变焦，4K配合7倍数字变焦，其他配9倍数字变焦。