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5.6只是镜头指标,表明这个时候的镜头锐度最好。真正拍片时候要看你虚化的程度,你要景深大,就不能用5.6这么大的光圈,而肯定要小光圈,至于拍微距为什么光圈越小越好,是因为镜头离得越近,景深越浅,平时7或者8能够达到的景深,近到这种程度就是16或者18也未必达到,如果这个时候用5.6,你看到的就是大部分都虚了,只有一点点在焦内,motor放到22是想把景深最大化,想法是正确的,不过16,18,22在这种距离上差别不会太大,而锐度往往是微距的灵魂,所以从22提到18牺牲了一点点景深,却换来更好的镜头指标,还是值得的。
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Thanks for the detail instruction. This is the best instruction I have had so far at public website. I will try what you said next time. I cannot input Chinese words at this moment. I really appreciate your help. Again thank you so much.
' K; J/ z. G4 n, @. p" iI will never mind friendly comments, such as yours. Discussing questions and improving photo skills is the happiest things at here.