Lens quality control

Started Sep 24, 2013 | Discussions thread
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Lens quality control
Sep 24, 2013

(Posted in Open Talk forum in error, unable to delete it)

Intended for Sony NEX Talk ----

I haven't seen a reference to this on this forum:

Where the sharpness comes from

Two links (from the DPR article linked above):

Tour of the Sigma lens factory

And - There is no perfect lens

Quote from the above blog: "Most people understand that some copy-to-copy variation is inevitable in the manufacturing process. Most are surprised, though, at how large the sample variation seems to be. Heck, I was surprised at how large the sample variation was when I started doing this kind of testing."


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