论文部分内容阅读
本文向广大摄影爱好者介绍一种便携式定时曝光箱,该曝光箱结构精巧,携带方便,用干电池供电,曝光时间连续可调,因而特别适合外出旅行或在无电地区使用。
This paper introduces to photographers in general a portable timed exposure box that is compact, portable and powered by a dry cell battery with continuously adjustable exposure times, making it ideal for trips or use in areas without electricity.