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一、认识太阳光线1.太阳光线的强度光线的强度是指被摄体表面的受光程度,即照度。照度是确定曝光的重要依据,太阳光的强度与距离有关(距离越近,太阳光线越强),与受大气影响成反比(大气影响越大,太阳光线强度越小)。2.太阳光线的性质光线性质用硬(直射光)与柔(散射光)来表示。如光线照射物体后有明显阴影,则为硬光,如没有明显阴影轮廓,则为柔光。太阳光线在晴朗的白天较硬,阴天则较柔。二、了解太阳光线变化
First, to know the sun’s rays 1. The intensity of the sun’s rays The intensity of light refers to the degree of light received on the surface of the subject, that is, the degree of illumination. Illumination is an important basis for determining exposure. The intensity of sunlight is related to distance (the closer the distance, the stronger the sun’s rays), and inversely proportional to the influence of the atmosphere (the greater the atmospheric influence, the lower the intensity of the sun’s rays). 2. Properties of Sun Rays The ray properties are represented by hard (direct light) and soft (scattered light). If there is obvious shadow after the light illuminates the object, it is hard light, and if there is no obvious shadow outline, it is soft light. Sun rays are harder in sunny days and softer in cloudy days. Second, understand the changes in the sun