推荐回答(4个)
也就是在水里拍照。
你可以跑到这里
http://zhidao.baidu.com/question/288730371.html
这个相对来说比较复杂,水下摄影从构建到设备都需要使用到专业的硬件设备。
正常防水相机都需要人带着在水下拍,水下环境复杂,安全性无法保证。不过现在有了水下机器人,一是下潜深度可达150米,潜到人类去不到的深度。二是可以直接在岸上通过操控APP就能实时观看到水下的画面了,进行实时录制和拍摄了。
水下摄影,影视特技摄影(象)方法之一,即在水中摄影。摄影者携带有防护罩的摄影机和潜水装备,潜入水中直接拍摄。水下摄影可真实地反映水下景象,如水生动植物的生活、海底和河床的地质资料、考古发现等。水下摄影(象)在科研、军事技术、体育、教学等方面应用较广。
摄影人员和摄影机潜入水中拍摄水中景物的方法。摄影人员身穿潜水衣,脚戴鸭脯,操纵水下摄影机拍摄,也可以将摄影人员和普通摄影机放在潜水设备中通过密封窗拍摄。较深的水下,须要水下照明灯光。也可以把水下摄影机潜入水中,摄影师在水面上面,遥控摄影机拍摄。
水下摄影注意事项:
1、最佳拍摄时间段是中午前后
相机在水下摄影时需要防护罩 水下拍摄最好选择在阳光明媚的中午,因为此时太阳当顶,阳光几乎垂直照射在水面,很少反射,水中的光亮最强。
2、要注意水对光线的折射
千万不要认为你在水下看到的距离就是实际距离,由于水对光的折射度约为空气对光的折射度的1.33倍,所以水中的物体看起来比实际上的体积大1.25倍,视线距离近约25%,水下看上去0.75米处的景物,实际距离约为 1米,手动调焦时不要产生错觉。
3、选择中高速胶卷为宜
因水中光亮较弱,在水中游动又难以端稳相机,使用低速胶卷难以凝固画面。使用ASA800°以上的快速胶卷虽能解决这一问题,但影像颗粒粗糙,色彩还原不理想。因此,使用ASA2 00°至ASA400°的中速胶卷比较适宜。
4、辅助光源不可少
到了10米左右水深,只有使用闪光灯等辅助光源照明,才能确保照片色彩的正确还原。
5、尽可能靠近拍摄主体
再透明的水中也有悬浮微粒,距离被摄体越远,照片的清晰度就越差。因此要尽量使用广角镜头靠近被摄体拍摄。
6、注意拍摄角度
要尽量避免照相机直接朝下拍摄,因为这时是顺光,拍出来的照片缺少层次和反差。最好的拍摄角度是与拍摄主体等高或低于拍摄主体,这时的光照为侧光或侧逆光,拍出来的照片层次分明,反差适中。
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