Sigma 17-50 mm f2.8 EX HSM OS (Nikon mount) Focus Hunting: DIY Repair?
Almost 2 years ago I have purchased a Sigma 17-50 mm f2.8 OS to use with my Nikon D5000.
During the first year of its life this lens has performed amazingly well. I loved every aspect of it. Back at that time, I wondered why people would spend that much more for a Nikkor unit.
One year later I've found why.
After this one-year period of perfect marriage, the unit started to suffer from a terrible focus hunting, even in bright light.
I've cleaned its contacts, tested some other units, reset the camera and came to the conclusion that the Sigma was in fact defective.
I would send it to repair if possible, but I do not live in the US, and I've bought it there. My country also does not have official Sigma support, so I wonder if I can try to repair it myself. I have succeeded to disassemble it partially (perhaps 50% of it), but I've found nothing strange so far, at least when it comes to its connections.
I'm very disappointed with Sigma quality. I barely used this lens. Never took it to harsh enviroments. I really regret having buying this over the Nikkor equivalent.
Thanks for any help.
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|Jan 2, 2014|
|Jan 2, 2014|
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