Who knows the camera lens on the m, ft What does that mean?
Unit of rice, and its corresponding line of numbers refers to the current lens when the focus of the lens to the subject of the distance of the meter; so through it to visualize the distance to the subject, you can generally determine the exact focus, focusing ring should Adjust the position (manual focus, blind tone used), in the auto focus, you can also use it to determine the distance from the lens to the subject.
For example, the ft is the English abbreviation of the foot, and the corresponding line of numbers refers to the distance (in feet) of the current lens, that is, the number of feet of the distance from the lens to the subject when the current lens is exactly focused;
Ft is the foot abbreviation. M is the abbreviation of rice for focusing.
