回复:This is what one of my friends uses.

http://www.bhphotovideo.com/c/product/514614-REG/Kenko_KFM_1100_KFM_1100_Auto_Digi_Meter.html

But e-TTL2 or i-TTL was designed to do just exact what you want to do.

Best regards,

Alex

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多谢! -吴聚- 给 吴聚 发送悄悄话 吴聚 的博客首页 (87 bytes) () 01/07/2012 postreply 14:11:31

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