Unverified85% confidenceDecision RuleTime unknown
黑白卡图案的黑白面积占比接近1:1、线条边缘清晰锐利的对比刺激效果最佳，模糊渐变或灰调过多的卡片刺激不足
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified黑白卡图案对比度必须为纯黑(#000000)与纯白(#FFFFFF)，色值偏灰或印刷发暗会显著降低视觉刺激效果，选购时可看实拍图黑色是否哑光实黑75% similarUnverified黑色网面视野清晰度显著优于白色或浅色网面，深色网眼在眼前形成的干扰小、透光对比更好；选购时优先黑色网面区72% similarUnverified严格的自定义白平衡应使用18%中性灰卡而非纯白卡，灰卡对相机测光更友好且不易过曝导致数据溢出；纯白卡在强光下易高光溢出使白平衡取样失真69% similarUnverified全黑遮光环境优先选白幕（增益0.8-1.1），色彩还原最准、可视角度最广（160°以上）；灰幕会牺牲白色亮度换取黑位，不适合纯暗室68% similarUnverified黑白相纸对曝光宽容度要求更高，光线不足或过曝时画面灰度层次容易丢失，新手废片率比普通彩色相纸更高68% similar
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