EF-S 55-250 STM IS broken focus

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noisebeam Senior Member • Posts: 2,684
EF-S 55-250 STM IS broken focus

I have an out of warranty 55-250 IS STM that has broken focus.

It stopped working, then worked for a few days, now doesn't work again.

Manual focus ring does nothing when set to M in the full focal length range.

It will AF correctly only in end of tele range (like ~200-250mm)

When first attached to camera makes clicking noises that eventually settle down.

Any possibility to self repair or at minimum find the broken part (if not electronics)?

Works fine as a 250mm prime.

 noisebeam's gear list:noisebeam's gear list
Sony RX100 II Canon EOS 30D Canon EF 100mm f/2.8 Macro USM Sigma 15mm F2.8 EX DG Diagonal Fisheye Sigma 30mm F1.4 EX DC HSM +8 more
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