Why do photos with deep scenes make people feel exquisite?

Learning photography often leads to a sentence that photography is the art of subtraction. It's good that novices can make natural compositions, prominent subjects, simple pictures and reasonable color matching when they go on the road.

Of course, this is not absolute. When browsing photography websites, you often see beautiful photos of girls in the background of various colorful small objects in front of the grocery store, and the aperture is not necessarily large.

Large aperture is more suitable for shooting small, fresh and emotional films. It effectively blurs the background and avoids the clutter and colorful background, so as to better highlight the subject and express the theme. Therefore, even if a good retoucher doesn't want to change the depth of field, he will try to deflect the messy colors in one direction to achieve the purpose of unifying the picture.

When you take a close-up of the face, you can see the virtual and real evolution of the large aperture from the neck to the face. When you look sideways a little, you can even see the virtual and real transition between eyes and nose to lips. Although we can't see anything clearly except a focused eye, and even can't tell where it is more virtual and more real, the brain judges that such blurring is reasonable and habitual, and its layering is very clear and beautiful, which is the charm of large aperture shooting.

My understanding of photography is nothing more than capturing the changes of light in hue, brightness, fiction and fact, and the most prominent performance of large aperture is to simplify the lens content within a limited depth of field and make the layers more distinct, which may be what you call "exquisiteness".

Filters such as Gaussian blur and radial blur are often used in retouching, but in fact, artificial ones are always inferior to natural ones (camera generation), just like the example of close-up of the upper face. Therefore, the best way to get a shallow depth of field is to buy a fixed-focus lens with a large aperture to ensure clear imaging.

Thinking while writing is limited, biased or misleading, please correct me, that's all.