它以CCD读出时钟周期为单位调节曝光时间,提高了系统的响应速度和对外界的适应能力。
The method takes the CCD read clock as the unit to adjust the exposure time. It improves the system's responsiveness and ability to adapt to the outside world.
在设计微光CCD ICX659ALA的驱动电路和驱动时序的基础上,提出了一种自适应精确调节曝光时间的方法。
A precise method to adaptively adjust the exposure time of CCD has been proposed and demonstrated based on the design of the driving circuit system and timing of ICX659ALA, a Low Light Level CCD.
它的大光圈镜头可以摄入尽可能大的光量,所用技术并不需要笨重的自动对焦系统,曝光时间也是自动调节。
It has a wide-aperture lens to capture as much light as possible, and the technology requires no clunky auto-focus mechanism. It adjusts exposure time automatically.
精确定量满月时的曝光时间不好捉摸;如果景物有散射并且直接受光,那么就在ISO 100下使用f/2.0和30秒曝光作为初始值,然后向上图的1——4四个方向进行调节。
Gauging exposure times during a full moon can be tricky; use f/2.0 and 30 seconds at ISO100 as a starting point (if subject is diffuse and directly lit), then adjust towards scenarios 1-4 accordingly.
精确定量满月时的曝光时间不好捉摸;如果景物有散射并且直接受光,那么就在ISO 100下使用f/2.0和30秒曝光作为初始值,然后向上图的1——4四个方向进行调节。
Gauging exposure times during a full moon can be tricky; use f/2.0 and 30 seconds at ISO100 as a starting point (if subject is diffuse and directly lit), then adjust towards scenarios 1-4 accordingly.
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