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    艺考摄影培训简述光在水中的特性
    2015/5/22 11:19:55
    光是摄影中最重要的元素之一,这一元素在水中具有怎样的特性呢?在水中,光的特性不同于它在大气中的特性.下面请看艺考摄影培训的解析:艺考摄影培训
    Light is one of the photography of the most important elements. The elements in the water with what characteristics?? in the water, the characteristics of light different in its characteristics in the atmosphere. Next, please see art photography training analytical:
    首先,水对光的选择吸收是不同的.600毫微米以上的长波长光在水中吸收性大.在水深10米以下,对摄影有效的红色光不存在,因此仅利用自然光进行水中摄影,颜色为单一蓝色,而红色系的颜色均表现为黑色.
    First, selection of water on light absorption is different. 600 nm over the long wavelength in water absorbent. Depth of 10 meters in the following, for effective photography of red light does not exist, therefore using only natural light for underwater photography, color is a single blue, and red color showed black.
    其次,光受浮游生物的影响发生散射.在水中摄影时,因水中散乱光的存在,影像反差下降率很大.要充分表现水中拍摄的景物,有必要将摄影距离限制在2米至2米以下.进行特写摄影和在摄影距离短的情况下,选择使用可得到大角度画面 的短焦距镜头,是得到真实表现照片的方法
    Secondly, by the impact of plankton scattered. In underwater photography, because of the presence of water scattered light, the image contrast between the decline rate is very large. To fully express the water shooting scenery, it is necessary to photography distance is limited to 2 to 2 meters below. For close-up photography and photographic distance short, choose to use can get the big picture angle of short focal length lens is a true representation of your photos
    再次,是中光散射、光吸收特性引起的光量下降现象也是一大问题.水浅处的摄影和陆上摄影的光量相差并不太大,但在透明度为30米的海水中,水深达到10米处,光量只有大气中的50%.透明度低的水中光量下降率将更大,因此,艺考摄影培训建议有必要根据摄影位置选择使用高感光度的胶片.艺考摄影培训www.dysypx.com/
    Again, the decline of light scattering, light absorption characteristics caused by the amount of light is a big problem. Shallow water of photography and land photography light difference is not too big, but in transparency for 30 meters of water, the water depth reaches 10 meters, light only in the atmosphere of 50%. Low transparency of water quantity decreased at the rate will be greater. Therefore, art photography training suggestions necessary choosing and using the high sensitivity of the film according to camera position.
    此外,因光的波长、折射角不同,在画面上也出现摄入被分解的各单色光现象.水中摄影还要注意因水的折射率引起的镜头焦距的变化.巨细而言,还有很多问题需要注意,这就需要进一步到艺考摄影培训进行学习,进而掌握更多相关知识.
    In addition, due to the light wavelength, the angle of refraction different. In the picture also appeared intake is decomposed each monochromatic light phenomenon. Underwater photography but also pay attention to by the water's refractive index caused by the focal length of the lens changes. Size, there are a lot of problems need to pay attention to, which needs further to the art photography training to learn, then grasp the more relevant knowledge.