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数码摄影

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数码相机

数字摄影(英语:digital photography)是指使用数码化电子器件CCDCMOS)替代传统胶片来记录影像的技术,配备数字成像器件的相机统称为数码相机。对于数码摄影来说,光学影像的捕获依然运用小孔成像原理,但其将投射其上的光学影像由光感测器转换为电信号,用模拟数字转换器改为数字资讯后记录在存储介质(如CF卡SD卡)中。其成像可被生成标准的位图图像格式,并借助如Photoshop等位图图像修描软件进行各种修改,并经由数字冲印或打印机输出为实物照片,或可用显示器投影机、电子相簿等展示工具直接展示,也可以直接转换为各种适用的格式用于网络发布或电邮传送。

相对于传统胶片,数码介质具有存储量大、可循环使用、可直接观看拍摄影像、后期修改简易、免却冲印等特点,在进入21世纪后普遍被摄影界接纳,并拥有很高的市场占有率。

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数码摄影
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