What do you think of the camera lens?

Understand the lens -3 pictures teach you to understand the lens parameters and buttons!

First, Canon lens structure

Focus ring: adjust the focus position.

Focus switch: automatic/manual focus switch.

Ranging window: display the focus distance.

Zoom ring: adjust the focal length.

Bayonet logo: change the corresponding position of the lens.

EF: Quan Huafu lens, half lens.

EF-S, micro single lens.

EF-M, axis shift lens: ts-e.

24- 105mm: focal length.

1: 4L: aperture.

That is: anti-shake.

USM: Ultrasonic motor.

Second, Sony lens structure

Focus ring: adjust the focus position.

Focus lock: press and hold to lock the current focus.

Zoom ring: adjust the focal length.

Focus switch: automatic/manual focus switch.

Bayonet logo: change the corresponding position of the lens.

FE: Quan Huafu lens, half lens: E.

24-70 mm: focal length.

F2,8: Aperture.

GM: The main lens represents the professional level.

3. Nikon lens structure

Focus ring: adjust the focus position.

Zoom ring: adjust the focal length.

Ranging window: display the focus distance.

Bayonet logo: change the corresponding position of the lens.

Ultrasonic motor and AF-P motor.

24-70mm: focal length.

F/2, 8E: Aperture E type.

ED: ultra-low dispersion lens.

VR: Anti-shake.