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09-22-2010, 11:51 PM   #1
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Bokeh comparsion: FA*200/2.8 vs EF70-200/4L IS with 40D

Just bored at home b4 sleep, so did a brief comparison between the 2 lenses. Sharpness is about the same @f4 but bokeh is quite different.

EF 70-200/4L IS @f4
EF70-200f4LIS.jpg photo - Alan Chan photos at

FA*200/2.8 @f4
FA200f4.jpg photo - Alan Chan photos at

FA*200/2.8 @f2.8
FA200f2.8.jpg photo - Alan Chan photos at

09-23-2010, 04:54 AM   #2
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Green fringes

The FA*200 has plenty of green stuff around the edges in the out-of-focus area. The Canon much less.
I have the DA*200, which is derived from the FA*200. It does the same thing.

09-23-2010, 05:45 AM   #3
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Yes, the lens design is not apochromatic. Take Sigma 180/3,5 instead - similar aperture/focal length but good apochromatic design.

BTW I tried the Canon EF 200/2,8 and Im not sure if that is apochromatic either.

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