Question about Canon 28-135mm f/3.5-5.6 EF IS USM AF Lens

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My Canon 28-135 mm f/3.5-5.6 EF IS USM AF lens has a problem that bugs me. The zoom is not veryh firm. When I tilt the camera with the lens down at an angle, the zoom will extend by it's weight. Is this the "O" rings wearing out? The lens is only a year old.

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There's nothing you can do about this, it's not a wear issue it's just poor design or poor manufacturing tolerances and is always far more likely to occur on superzooms like yours.

Contact the Canon Service Centre in your country; they may be able to offer a repair under warranty, but it's far more likely that they'll just tell you that the lens is working within normal design parameters. If that happens your best option will be to sell the lens and consider buying another, but try it first to make sure that feels tighter. The loss you make on resale and repurchase will be less than you'd pay for any repair attempt which may not actually fix the problem anyway.

Sorry this is not the answer you hoped for but perhaps it's helped you to decide what to do next.

Posted on Oct 02, 2010

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