[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

焦外光斑边缘出现同心圆纹路(洋葱圈)是非球面镜片打磨精度不足所致,追求奶油般焦外应看MTF和实拍焦外样张而非只看光圈参数

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