What does the W-T on the camera mean?

W-T is the function of zoom camera to change the focal length and distance of lens. The focal length multiple of the lens in the W key direction is 1X, and the lens in the T key direction is getting bigger and bigger. W is the abbreviation of Wide, which means that the focal length of a short-focus lens becomes smaller and the picture is closer. When the W button is operated, the picture becomes wider and wider and closer.

T is the abbreviation of Telede, which means telephoto, the focal length of the lens becomes larger and the picture becomes smaller. By operating the T button, the picture becomes narrower and farther.

Extended data

Camera lens part key

Manual/Servo Auto option is used to set automatic and manual zoom adjustment. In the servo state, the zoom lever is used for automatic adjustment. The zoom lever is marked with T and W at both ends. T is the amplification subject, and W is just the opposite.

Iris is a device used to change the amount of light entering the photosensitive surface of the fuselage. (uto) Auto /M(anu) Manual Selector Switch is used to set the manual and automatic control modes of the aperture. In automatic mode, the camera will automatically select the aperture size. In manual mode, directly rotate the aperture ring by hand to adjust the aperture value.

VTR(rec) Press this key, and the recording device will start recording. ? Back focus adjustment: If the focal points of telephoto and wide angle are not aligned correctly during zooming operation, the back focus should be adjusted. (Distance from lens mounting surface to imaging surface).

Close-up: The focus range of a general lens is 0.9m to ∞ (infinity), while the macro function can shoot small objects several centimeters away from the lens. The method is as follows: put the lens at macro, focus on ∞, set the zoom ring to manual, and manually adjust the zoom ring to make the subject clear.