What kind of lens is a "cookie lens"

Cookie head refers to a kind of lens with short length (that is, very thin) in SLR lens. Because it looks like a biscuit, it got the nickname biscuit head.

In order to pursue the ultimate compact size, this kind of lens sacrifices the proportion of the maximum aperture and even the image quality of the lens. Generally, the maximum aperture of biscuit head is only F2.4-2.8.

Advantages of biscuit head

1, compact, can make the whole lens easily put into the pocket;

2, fast, the focusing speed is unmatched by the zoom head;

3. The "fast" large aperture makes the shutter speed much faster, and the ability to capture moments is good;

4. The visual angle is fixed. After skilled use, you can blind shot (without looking at the viewfinder) or carry it with you. You can finish the shooting preparation in the moment you take out your camera. A camera that can freeze wonderful moments without attracting attention and without framing is a sharp weapon for human photography. Some masters' works are representative works of this kind of camera.