在景物中设置标准灰阶标板和彩色靶标，其目的是为了确定正确的曝光量和正片印制。
The use of standard gray scale and color targets in the scene is required for correct camera exposure and positive printing.
对从不同观察角度所拍摄的透明片进行多次全息曝光并记录在同一张全息片上，可在普通白炽灯下看到景物的真彩色动感全息像。
If multiply expose the object from different angles on a same film, a true color moving hologram image can be viewed in a common incandescent lamp.
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