How good is the 16-35 (version I) wide open?

Started Jan 12, 2013 | Discussions thread
kevindar
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Re: How good is the 16-35 (version I) wide open?
In reply to zalle, Jan 12, 2013

10 3.5 translates to 16 5.6 on the 16-35 and 5d2.  the lens would be very sharp about 80 percent of frame, soft in the corners (5%) and ok the remaining 15.  the 16-35 never gets supersharp in the corners on the wide end.  If wide open or even stopped down performace is very important to you on the wide end, look at the tokina 16-28.

16-35 is very sharenter at 2.8 throughout its zoom range.  wide open, 2/3 of the way from center, its simply soft on the wide end, becoming sharper as you stop down, but on the wide end, the extreme corners are never tack sharp.  17-40 does slight better here at f4.

 kevindar's gear list:kevindar's gear list
Canon EOS 5D Mark III Canon EF 85mm f/1.2L II USM Canon EF 16-35mm f/2.8L II USM Canon EF 70-200mm f/2.8L IS II USM Canon EF 24-70mm f/2.8L II USM +20 more
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