测光模式

本相机有两种曝光测定系统：中央偏重测光和单点测光模式。

This camera has 2 types of exposure metering systems : center-weighted average metering and spot metering .

本文介绍了照相机的测光原理、测光方式及测光模式；阐述了常见的SPD、CDS、GaAsP等测光元件及应用情况，着重分析了闪光测光技术。

This paper introduce principle , element and mode of the camera photometry , it elaborates on familiar photometry element and application , it comprises SPD , CDS , GaAsP , etc. While it put emphasis flash photometry technology .

你会发觉在反射式测光中，有多个测光模式可给选择，尤其是内置于相机的光。

You may find that there are many metering modes , especially for those built in meters .

指出文献上谱板测光数据中常见的错误及其产生的原因，并提出一个可能将乳剂特性曲线从曝光不足至曝光过度（负感部分除外）全部校直的测光函数模式。

Both mistakes existing in photometric data of spectrum plate and there causes have been pointed out of some scientific papers on spectrography , A photometric function form which may possibly align the Whole emulsion characteristic curve from underexposure to overexposure except solarization has also been proposed in this paper .