小学文化（Primary school culture）.docVIP

小学文化（Primary school culture） In advertising photography, lighting is a creative work, which not only embodies the photographers personality and style, but also related to the success or failure of a piece of work. Light characteristics Photography, light of characteristics from six aspects of light, brightness, light type, light and color than to. 1. luminosity Luminosity is the most basic factor of light. It is the general name of the brightness of light source and the brightness of light on the surface of an object. The luminosity is directly related to the exposure, the luminosity is large, the required exposure is small, the luminosity is small, and the amount of exposure required is large. In addition, the size of the luminosity also indirectly affects the depth of field and the sharpness or blurring of moving objects. The light of great depth and easy to produce clear images effect; small luminosity is prone to motion blurred image effect and small depth of field. 2. optical position The light position refers to the direction of illumination of the light source and the position of the light source relative to the subject. In photography, the light position determines the position of the objects light and shade, and it also affects the texture and shape of the object. Light can be captured in the myriads of changes, but with the camera position relative to the case of a fixed position can be divided into direct light, side light, light, top light, foot light and scattered light six. 3. light Light quality refers to the characteristics of hard and soft light. The so-called hard, refers to the shadow produced by the light clear and dense, sharp and high contrast; the so-called soft, light produced by the shadow soft, unknown, fast, the outline of the gradient, low contrast. The hard light has an obvious directionality, which makes the subject produce a distinctive contrast between light and shade, and helps to reflect the texture. Hard light often gives strong an