Is the aperture of the 85 fixed-focus lens in the foreground virtual?

85 fixed-focus lens takes a long view, and the aperture is not empty.

A fixed-focus lens with a focal length of 85mm never lacks a large aperture. It is not as difficult to enlarge the aperture as a wide-angle lens, nor does it need the huge lens support as a super telephoto lens. The design can use a large aperture lens similar to the classical double Gaussian structure at the head end, and can easily realize various aberration equalization corrections.

Anyone who has used it should know that the optical quality of 85mm lens is often very high, which makes the background of the picture blurred and pleasing to the eye, with high definition, little color difference, little image field deformation and less serious aperture erosion of blurred points.

Introduction of 85 fixed focus lens;

Speaking of portrait lens, it must be the first choice represented by 85 mm. Why do some people like to take portraits with 85 mm focal length? Because communication is convenient. If the distance is too close, it is easy to make the model nervous. If it's too far, you can only take pictures.

To take a good portrait, the photographer must give proper guidance in posture and expression. 85mm lens can focus the visual attention on the characters, and at the same time, it can better express the relationship between people and the scene. The most important thing is that blur and imaging can reach the ideal state of portrait.

So now every family is competing for every inch of land in the 85mm focal length, and they will make special optimization for portrait shooting. The feature is not to pursue the ultimate sharpness and resolution, but to preserve the aberration appropriately to realize the delicate transition of skin color details, highlighting Jiao Wai's gentleness. Even Lao Lang found that the newly introduced 85mm/ 1.4 and 85mm/ 1.2 lenses in recent years can be released without retouching.