[問題] noct手工研磨非球面鏡的優點?
各位前輩好，最近買了Nikon 20-35
，是衝著他號稱有手工研磨非球面
鏡，小弟知道非球面鏡的好處，好奇
的是為何強調手工呢？是機械沒法做
出非球面鏡嗎？還是手工的做出來會
比機械好？（就像那些貴桑桑的超跑
一樣？）感謝把文章看完，下雨天亂
問請勿見怪，祝福各地雨過天晴，快
樂拍照！
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