[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fQyh4CuUCvPp3Z7QXMQWv6O9Io83hrzi0jjO94xZ5EBY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":29,"type":34},[],"2023-06-07 03:56:48",50485346,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},12,"dfb93cf1380b7a20a50807519ddfd1cd","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5c2b45b9e4e0e95ab2cc393d42ee05d9.png","摄影与图片处理","b8c72cc633c84f59a3dd13b5f13e75b8","曝光控制、相机选购小测验","曝光量是光线的强度乘以光线通过的时间",[19,31,35,40,45,50,55,60,65,70],{"answer":20,"createTime":21,"id":22,"options":23,"question":28,"source":29,"type":30},[],"2023-06-06 19:38:18",49743241,[24,25,26,27],"光圈大小","快门速度","焦距","感光度","以下哪个选项不是控制曝光的因素","v1",0,{"answer":32,"createTime":5,"id":6,"options":33,"question":17,"source":29,"type":34},[],[8,9],3,{"answer":36,"createTime":5,"id":37,"options":38,"question":39,"source":29,"type":34},[],50485347,[8,9],"要获得正确的影像曝光,CCD感光片需要接受一定的曝光量.光强度越大,曝光时间越长,光强度越小,曝光时间越短",{"answer":41,"createTime":5,"id":42,"options":43,"question":44,"source":29,"type":34},[],50485348,[8,9],"曝光过度,指的是在拍摄过程中,因对拍摄体亮度估计不足,使感光元件感受到太多的光,画面中暗部细节都消失了,画面中大多数像素点都太亮,导致画面偏白",{"answer":46,"createTime":5,"id":47,"options":48,"question":49,"source":29,"type":34},[],50485349,[8,9],"曝光不足,因过高地估计了被摄体的亮度,使感光元件感受的光线不够,亮部细节消失,画面中大多数像素点都太暗,导致画面整体偏黑",{"answer":51,"createTime":5,"id":52,"options":53,"question":54,"source":29,"type":34},[],50485350,[8,9],"影响曝光的三要素是:光圈大小、快门速度、感光度(ISO)",{"answer":56,"createTime":5,"id":57,"options":58,"question":59,"source":29,"type":34},[],50485351,[8,9],"光圈系数越小(例如F1.2),光圈越小;系数越大,光圈就越大",{"answer":61,"createTime":5,"id":62,"options":63,"question":64,"source":29,"type":34},[],50485352,[8,9],"大光圈,画面亮,小光圈,画面暗",{"answer":66,"createTime":5,"id":67,"options":68,"question":69,"source":29,"type":34},[],50485353,[8,9],"当光圈开得越大,背景虚化效果越明显;小光圈背景虚化效果则越不明显",{"answer":71,"createTime":5,"id":72,"options":73,"question":74,"source":29,"type":34},[],50485354,[8,9],"光圈增大或减少的同时,快门速度同时减慢或加快,曝光量则不变"]