这部分是因为当时的照片大都是黑白的，而且尺寸很小，如果想放大则太贵。
This was partly because at the time photographs always came in black and white, and in a fairly small size, and to have them enlarged was far too expensive.
所有展出作品全部是由黑白胶片拍摄并由作者手工放大而成，也表达了其本人对古典摄影工艺的热忱与执着。
All exhibited photographs were meticulously developed using classic techniques, using black and white film and manual enlargement, which displays his deep interest and talent for film photography.
硬件系统主要由显微放大镜、CCD黑白摄像头和计算机组成；
The hardware structure is mainly put up of the microscopical magnifier, a black and white CCD vidicon, and computer.
其彩色负片分别用红、绿、蓝滤色镜及普通放大机分色放大，制成黑白正版。
The magnified black white positive separation plates of the negative color film were made with an ordinary enlarger and the filters of red, green and blue.
背景是一张放大了的黛安娜戴着皇冠回眸嫣然一笑的黑白照片。
The background was an enlarged black and white photo of Diana wearing a beautiful crown turning her head back smiling beautifully.
背景是一张放大了的黛安娜戴着皇冠回眸嫣然一笑的黑白照片。
The background was an enlarged black and white photo of Diana wearing a beautiful crown turning her head back smiling beautifully.
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