Qiu Changwei (DCFS Editorial Department) Lens Flare, also known as "ghost image", is a kind of light spot that appears on the image. When strong light enters the inside of the lens and undergoes multiple reflections, refractions or diffractions, it will form multiple spots on the glass sheet. individual or radial spots of light. Although lens flare can cause problems such as blurry and unclear images, it can also effectively change the atmosphere and mood in the image, which is an important element used by many image creators.
This article will introduce how to use the lens flare, with the insights of Gustavo Mercado, the author of "The Language of the Lens", from the photo background removing film director's image creation thinking, to understand the visual clues hidden behind the lens flare, for reference. The timing and use of lens flare situation. 06_lensflare Photo Credit: "ET Alien" stills Is lens flare a flaw? Analysis of causes and elimination methods For most photographers, lens flare is a picture flaw. In addition to a large number of flares that will obscure the subject, lens flare may also make the audience realize that they are viewing the image through the camera lens, thereby affecting the viewing angle.
However, there are also many photographers who are happy to shoot the lens flare, and even create their own image style. Generally speaking, the flare of a spherical lens tends to be circular, but the flare of an anamorphic lens tends to be an upright oval or a thin line almost crossing the frame. When adjusting the aspect ratio, the compressed image is stretched to the desired ratio, so as to retain more pixels and screen content, and this also makes the lens flare also stretched to form a unique visual effect. 01_lensflare Photo Credit: Stills from "A Star Is Born" How to avoid lens flare? Under the light source, as long as the focal length of the camera or the camera is longer and the aperture is smaller, the lens flare is less likely to appear on the screen, and vice versa. The corresponding lens flare is