Question about Sigma 15-30/3.5-4.5 EX Aspherical DG F/Sigma

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No focus at 15mm

I think i must have knocked it - its ok at near objects. 30mm wrk fine.

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I ever have same problem with my canon 18-55mm, it won;t focus in certain range zoom, then i see that the flexible cable inside the lens was ripped.

Posted on Jul 22, 2013

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My microscope won't focus, i tried everything...i don't know what is wrong with's brand new.. it worked a couple times but now it just stopped.. i dont know what brand it is...all it says is...

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30mm i think mate

please let me know if this helps
big mike :)

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