Sigma promises to test ALL lens they make!

Started Sep 24, 2012 | Discussions thread
SeeRoy Senior Member • Posts: 1,666
Re: Sigma promises to test ALL lens they make!

I haven't been that happy with the two Sigma lenses I've owned and there's no doubt that they have had plenty of QC problems in the past if user reports are anything to go by. However they are to be applauded for announcing this if only because they've thereby set the bar a little higher for themselves. Of course MTF tests only address part of the spectrum of QC issues in complex manufactured products like lenses. We need Sigma, in fact we need as many third party manufacturers as possible.

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