Canon 24-105 F4 broken flex – why exactly there?

You have probably seen a lot of 24-105 lenses – the flex cable breaks after a certain time of using – and ALWAYS on the same place.

And on that position always appears a tiny broken line in the middle of the cable – never on the margin.

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Today I looked at it again – and I have found, that on the other side of the cable there is on asymmetrical part, a piece of plastic. And when the cable rolls over that part, it is always pressed on the same sharp edge….

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From now on I will carve it to a chamfered, or rounded  form, to help the flex to roll smoother, without premature breaking.

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About canonrepair

Ruzsa János. Amatőr fotós, Canon DSLR váz. Amateur photographer. Canon DSLR user.
This entry was posted in 24-105 F4 IS, Canon lens. Bookmark the permalink.

5 Responses to Canon 24-105 F4 broken flex – why exactly there?

  1. Mészáros Gábor says:

    Elnézést, már a fő oldalon megtaláltam a választ a kérdésemre 🙂

  2. Mészáros Gábor says:

    Mibe kerülne 17-85 canon optikán a szalagkábel csere? Azon is ilyen probléma van

  3. saisiv says:

    Impressed you figured it out.

  4. Cardoso says:

    That’s not a bad solution. I usually do black tape reinforcement on the stress area…. But you can’t avoid this to happen again…

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