Traditional Culture Encyclopedia - Photography major - What does Jiao Wai Gionee mean?

What does Jiao Wai Gionee mean?

Jiao Wai: It's fuzzy, especially when taking portrait photos. I like to pursue the soft and fuzzy effect of Jiao Wai to highlight the theme. The fuzzy part of "background blur" that people often want is Jiao Wai. Generally speaking, the shallower the depth of field (the larger the aperture, the longer the focal length), the more out of focus and the more blurred.

Of course, this has something to do with the distance between the background and the subject. Different lenses, even with the same focal length and aperture, Jiao Wai will have different performances, which is also an important indicator that many people prefer one lens to another.

This is mainly related to the quality of the lens itself (including many aspects: coating, structure, lens itself and so on. ) is also related to the number and shape of aperture blades. Jiao Wai's light spots can be seen clearly, some are hexagonal, some are octagonal, some are circular and so on.

Uses: photographic terminology, features: blurred background, etc.

Focus: The area in the focal plane is called focus. Both focus and Jiao Wai can be blurred, and many people tend to pay attention to the blurred performance inside and outside the focus when choosing a lens. A simple understanding is that as a photographer, the area between the photographer's camera and the subject is called focus, and the area behind the subject is called Jiao Wai.

Extended data:

If the focus Jiao Wai is not clear, except for lens failure (which is rare), it is mostly caused by the photographer's failure to master the correct shooting method. The most common are:

1, the focus deviates from the main body, and there is no scene that can be clearly imaged in the focus area, which will lead to the overall unclear photo.

2. When shooting, the camera is not clearly heard or fixed, and there is slight jitter, which leads to blurred imaging and unclear actual focus.

3. If the subject moves, it will also bring the blur of the focus area.