07-10-2012, 10:47 AM
No doubt the best build quality of the trio, but probably the weakest optically:
http://www.opticallimits.com/nikon_ff/761-sigmaex2018fx
-- Markus
http://www.opticallimits.com/nikon_ff/761-sigmaex2018fx
-- Markus
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opticallimits.com
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