sample images: EF 100-400L vs EF 400 5.6L

Started Apr 10, 2012 | Discussions thread
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sample images: EF 100-400L vs EF 400 5.6L
Apr 10, 2012

Am giving Photobucket a try.

One image is with the EF4005.6L
The other is with EF100-400L

-camera: 40D, on tripod
-both lenses at 400mm
-mode Program AE
-ISO: 200
-evaluative metering
-Adobe RGB

The focus point is on the brass lamp to the left of the door trim, next to the green shutter.

Issue: The 400 prime is significantly sharper than the 100-400. I have read numerous reports of these two lenses' capabilities, but I didn't know the difference would be so noticeable. Do these two images show an appropriate, normal difference between the two lenses, or does the 100-400 look worse than it should by comparison?

Since the 100-400 is only 2 months old, I'm thinking of sending it to Canon for tweaking.

What do you think?

Many thanks,


Canon EOS 40D
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