Unverified80% confidenceDecision RuleTime unknown
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
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Unverified亮度调节需具备无级调光或至少10档，5档以下的补光灯在夜间近距离拍摄时容易过曝、无法微调到自然亮度88% similarUnverified无极调光(0-100%平滑连续)优于三档/五档分档调光，尤其适合半夜起夜场景可调至极低亮度(<10lm)避免强光刺激；分档调光最低档往往仍偏亮88% 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88% similarUnverified无极调光比分档调光更利于精确匹配环境光，但廉价无极调光电路易引入频闪；预算有限时，选无频闪的多档（≥3档）调光优于劣质无极调光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87% similar
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