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      07-20-2011, 05:43 PM   #9
rodi
. . .
 
Drives: your FACE!
Join Date: Oct 2008
Location: Atlanta proper

Posts: 2,400
iTrader: (-1)

so it has a permanent loss of one f-stop? awesome.
so shouldn't it cost less than if it were a real 200-400 f/4?
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