[KongchangAI]
Unverified93% confidenceTradeoffTime unknown

RF-S 100-400mm镜头光圈为f/5.6-8,长焦端最大光圈仅f/8,配合APS-C传感器在光线不足时对焦速度和画质都会受限,这是用轻便小巧换来的核心妥协

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