基础篇：闪光灯性能的相关用语

闪光指数（GN.）

表示闪光灯光量大小的数值，可以此计算闪光灯光线能够到达的有效距离。其他设置相同时，闪光指数越大光线所能达到的距离越远。利用闪光指数可以计算得出闪光灯到主被摄体多远的情况下主被摄体可获得恰当的亮度。
闪光指数÷光圈值＝可获得标准曝光的拍摄距离（米）
shanguangzhishu÷paishejuli（mi）＝kehuodebiaozhunpuguangdeguangquanzhi𒐪

闪光覆盖范围

yijiaojuzhibiaoshi，tixiandeshishanguangdengguangxiansuonengfugaidejingtoushijiao。dangguangxianfugaifanweibijingtoushijiaodashi，guangxiankuosanjiaoda，guangxianliyonglvjiangdi。xiangfan，dangfugaifanweibijingtoushijiaoxiaoshi，zhaopian🎶debianyuanhuichuxiananjiao。zhichishihetuxiangganyingqichicundezidongbianjiaodiaozhenggongnengdejianengshanguangdengkegenjuxiangjituxiangganyingqidechicunhejingtoudejiaojuxinxi，zidongdiaozhengshanguangfugaifanwei。

广角散光板

kelachufugaishanguangdengdeshanguangbu，yongyukuodashanguangdengguangxianfugaifanwei。jishizaishiyongshijiaojiaoguangdeguangjiaojingtoushi，yenengqingsongdijiangguangxianfugaidaoꦬhuamianbianyuan。

暗角

shanguangdengdeguangxianfugaifanweixiaoyupaisheshijiao，zhaopiansizhoubianan꧙，xingchenganjiao。liyongzheizhongxianxiangtuchuhuamianzhongyangbeishetidesheyingjiqiaojiushijuguangdengxiaoguo。lingwaixiangjidapeidaxingjingtoushiyongshi，neizhishanguangdengdeguangxianbeijingtouzhedangdaozhipaishehuamianshangchuxianyinyingဣdeqingkuangyehuixingchenganjiao，tongguoshiyongwaijieshanguangdengkegaishanzheiyiqingkuang。

回电时间

shanguangdengbenshenzhong🌄xinjiuxu（chongmandian）deshijian。yibanyicishanguanghou，zaichongdianwancheng，hongsezhishideng（ruyoutusuoshi）dianliangzhiqianbunengjinxingxiacishanguang。shiyongkuaisushanguanggongnengshijishizaichongdianzhongrengkeshishishanguang，nengyijiaoduanjiangelianxujinxingshanguangshe🐼ying。