Unverified82% confidenceDecision RuleTime unknown
调光精度看最低可调档位：优质灯支持1%级细调（0-100%），廉价灯只有10%档跳变，弱光环境无法微调；低色温下（<3200K）能保持无频闪的机型才适合高速摄影/高帧率拍摄
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Unverified评估亮度时应关注最低亮度档位的调节精度：仅有5%-10%档位跨度的灯在近距离美食/产品微距拍摄时最暗档仍过曝，需选支持0-100%无级或1%精细调光的型号88% similarUnverified调光精度低的灯在低亮度档（＜10%）会出现频闪或跳档，视频录制建议选支持0-100%无级调光或1%步进的型号，避免慢门/高帧率拍摄出现横纹88% similarUnverified无极调光和分档调光要看清：便宜灯多为3-10档跳变式，在拍摄中微调曝光时会突然过亮/过暗，专业用途选0-100%无级调光86% similarUnverified带亮度调节应做到0-100%无级调光且低亮度不频闪，廉价灯低亮度档常出现PWM频闪，慢门或高帧率拍摄会出现横纹85% similarUnverified亮度调节范围越宽（1%-100%可调）灵活性越好，但全光谱高显色灯往往牺牲最低亮度调光精度，夜间陪伴需求应优先低档位可调至5%以下85% similar
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