[問題] Nikon 105mm F2.8 micro一問
想請問一下各位大大，
今天去試了一顆Nikon 105mm F2.8的鏡頭，
但是我今天對焦之後，
在M模式底下，
光圈最大卻只能到3.5而不是2.8，
請問這是正常現象嗎?
為什麼不能再把光圈開大呢?
謝謝。
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