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Focus stuck on Sigma zoom

Started Jul 27, 2015 | Questions thread
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ThomasGD New Member • Posts: 1
Focus stuck on Sigma zoom

Hi everybody!

I recently bought a Sigma 28-70mm F2.8 EX Aspherical in superb condtion. Suddenly one day i noticed that the focus ring could go all the way to closest focus distance but is stuck around 0,6m. I've fixed several macbooks etc. and thought that this would be easy to fix but after some googling i found that i might be wrong.

It seems that taking apart a lens like this can be very challenging and therefore I hope I can avoid it. At least taking the lower section (closest to the mount) apart as all the electronics parts are here. I've read that one can take apart only the front element which seems to make sense in this case as its the focus ring that's somehow stuck.

Anybody having some advice for me?

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