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2036 posts

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  #992734 23-Feb-2014 12:24
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Obviously CGA is not intended to provide some kind of lifetime guarantee so the normal lifetime of the product is only relevant in terms of comparing warrantee terms between otherwise similar products.

I would say you would have to consider the price you paid and the way its intended to be used, because normal use of an interchangeable lense does involve some risks. Sigma could legitimately claim that they cannot be liable for customers treating their product a bit rough, so the CHA implied warrantee should only cover the time they expect it would take for a manufacturing defect or loose screw to become apparent. They might even agree that the diaphragm is a pretty robust part of the lense and just pay for it to be repaired or at least investigated.

Time to find a new industry!

5676 posts

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  #992810 23-Feb-2014 14:40
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The reasonable expected lifespan of a precision instrument such as photographic lens, hifi speakers or timepiece is very different from a low quality throwaway item such as a phone, iPod, etc.

It wasn't that long ago that people used to keep photographic lenses for 20 years or more, so it's a sad world we live in if people are now throwing them away when only four years old.

268 posts

Ultimate Geek

  #993210 24-Feb-2014 11:47
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Of course the first sensible thing to do is to have the lens inspected by someone qualified to repair lenses to asses the problem, which is an initial cost to you for the inspection.

Everything else is just pure speculation until the problem is identified and confirmed.

"you may not know anything about the issue, but I bet you reckon something"


- Mitchell and Webb



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Mad Scientist
27808 posts

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  #993601 24-Feb-2014 20:12
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Thanks I'll just potter on along with what I've got I think. Just shoot wide open (which is not very wide anyway)

Involuntary autocorrect in operation on mobile device. Apologies in advance.

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