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ISO。",[48,500,501,502,505],{},"拍摄瀑布丝绸感：三脚架 + ",[28,503,504],{},"1\u002F4s","，光圈 f\u002F11，ISO 100。",[41,507,508],{"id":508},"常见失败与对策",[92,510,511,524],{},[95,512,513],{},[98,514,515,518,521],{},[101,516,517],{},"现象",[101,519,520],{},"原因",[101,522,523],{},"对策",[108,525,526,537,548,559],{},[98,527,528,531,534],{},[113,529,530],{},"整体糊",[113,532,533],{},"快门过慢 + 手持",[113,535,536],{},"提高快门或开防抖 \u002F 三脚架",[98,538,539,542,545],{},[113,540,541],{},"主体糊、背景清",[113,543,544],{},"对焦错误",[113,546,547],{},"改单点对焦、连拍",[98,549,550,553,556],{},[113,551,552],{},"白天慢门全白",[113,554,555],{},"进光过多",[113,557,558],{},"ND 镜或傍晚再拍",[98,560,561,564,567],{},[113,562,563],{},"荧光灯\u002FLED 条纹",[113,565,566],{},"快门与电网频率不同步",[113,568,569],{},"50Hz 用 1\u002F50、1\u002F100；或提高快门避开慢门",[41,571,572],{"id":572},"练习",[488,574,575,578,581],{},[48,576,577],{},"同一行人：1\u002F30、1\u002F125、1\u002F500 对比。",[48,579,580],{},"三脚架慢门 1s 拍车流（注意安全，勿站路中）。",[48,582,583],{},"记录每种快门下的光圈、ISO，理解相机如何补偿。",[41,585,586],{"id":586},"小结",[45,588,589,596],{},[48,590,591,592,595],{},"快门决定",[28,593,594],{},"时间维度","：冻结还是流动。",[48,597,598,599,602],{},"下一节：",[28,600,601],{},"ISO","——当光圈与快门已到极限时的「亮度放大器」，代价是噪点。",{"title":90,"searchDepth":604,"depth":604,"links":605},2,[606,607,608,609,610,611,612,613,614,615,616],{"id":43,"depth":604,"text":43},{"id":68,"depth":604,"text":69},{"id":178,"depth":604,"text":179},{"id":243,"depth":604,"text":243},{"id":353,"depth":604,"text":353},{"id":384,"depth":604,"text":385},{"id":441,"depth":604,"text":442},{"id":485,"depth":604,"text":486},{"id":508,"depth":604,"text":508},{"id":572,"depth":604,"text":572},{"id":586,"depth":604,"text":586},{"title":8,"description":9},"knowledge\u002Flife-notes\u002Fphoto-creation\u002Fbasics\u002F06-shutter-speed","knowledge\u002Fknowledge\u002Flife-notes\u002Fphoto-creation\u002Fbasics\u002F06-shutter-speed.md","md",{"items":622},[623,628,632,636,640,644],{"path":624,"title":625,"description":626,"category":10,"score":627},"\u002Fknowledge\u002Flife-notes\u002Fphoto-creation\u002Fbasics\u002F02-camera-parts","相机结构与按键","拿到相机后，先熟悉机身各部位名称与必改的设置项，避免拍摄时手忙脚乱。",9,{"path":629,"title":630,"description":631,"category":10,"score":627},"\u002Fknowledge\u002Flife-notes\u002Fphoto-creation\u002Fbasics\u002F05-aperture","光圈详解","光圈（Aperture）是镜头内由叶片组成的可调光阑。f 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