http://www.dpreview.com/lensreviews/nikon_16-35_2p8_vr_n15/
no complaint about the edges on FX?
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Conclusion - Pros
Very high image quality on both DX and FX formats
Excellent build quality with dust and moisture sealing
Highly effective optical image stabilization
Fast, silent autofocus with manual override
Conclusion - Cons
Huge barrel distortion at 16mm on FX cameras
Relatively big and heavy for its class (larger than many F2.8 wideangle
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