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相機鏡頭 - 望遠鏡

walterma

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1# A A A Post at 31/12/2009 15:15  Show author

相機鏡頭 - 望遠鏡

請問一支相機鏡頭的焦距如何對應換算望遠鏡的放大倍數? 一支400mm的鏡頭大約相等甚麼倍數的望遠鏡?

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dick

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2# A A A Post at 31/12/2009 16:09  Show author
400mm 鏡頭在fullframe 機約等於8x 望遠鏡
http://www.fotop.net/sakura100
http://hk.myblog.yahoo.com/devplhf

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walterma

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3# A A A Post at 31/12/2009 17:39  Show author
Thanks Dick.

那麼FF下, 是否代表直接除50? 300mm 等於6x望遠鏡?

如果是1.6X機下, 又如何換算? 400mm x1.6機 等於 8x x1.6 (12.8倍??)

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dick

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4# A A A Post at 31/12/2009 19:15  Show author
你這樣計算都ok.

應該這樣說吧:
人的視角約為50mm, 所以10x的bino 就是500mm equ.
http://www.fotop.net/sakura100
http://hk.myblog.yahoo.com/devplhf

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