Unverified80% confidenceFactTime unknown
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
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80%
Confidence
Long-term
Relevance
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Unverified低亮度下的调光平顺度和无频闪同样关键：便宜的PWM调光灯在1%~10%低亮区间会闪烁或跳档，拍高速快门/慢动作会出现横纹，需选支持高频无频闪调光的灯92% similarUnverified调光方式优先选0-100%无级线性调光且低亮度无频闪的型号，PWM调光在低亮度下拍摄可能出现横纹，选高频PWM(≥25000Hz)或DC调光可避免91% similarUnverified看重护眼选无频闪认证（不闪烁或频闪深度＜5%）+ 显色指数Ra≥90，低价氛围灯常用PWM低频调光在低亮度档位出现明显频闪91% similarUnverified标称'无频闪'不等于全亮度无频闪，部分屏幕仅在100%亮度DC调光、低亮度切换PWM，实际使用亮度多在30-50%，需查第三方低亮度频闪实测88% similarUnverified调光线性度差的灯在低亮度(1%-10%)会出现频闪或跳档，视频拍摄尤其升格慢动作需选支持0.1%级无级调光且高频PWM(≥25kHz)的型号避免频闪条纹88% similar
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