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03-27-2013, 12:22 PM   #1
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Vivitar TX adapter rattles

I bought a Vivitar 70-150mm f3.8 Close Focusing Auto Zoom in a TX mount. As far as I can tell the lens and adapter are functioning as intended.

The TX adapter rattles when it is shaken; whether mounted on the lens or alone. Is this rattle sound normal?

This is my first experience with a TX mount and I would rather not disassemble it if not necessary.

Thank you for any insight.

03-27-2013, 12:26 PM   #2
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Yes, I believe it's normal. It rattles because the aperture lever is able to move freely.

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03-28-2013, 08:50 AM   #3
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Thanks Adam, that's good to hear.
03-28-2013, 09:01 AM   #4
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QuoteOriginally posted by wiseman Quote
TX adapter rattles when it is shaken
You know what to do then... don't shake it and you'll be none the wiser of the rattle.

As Adam has already said, I do believe they all do.

03-28-2013, 09:34 PM   #5
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Yeah, bad habit. I probably tap or shake everything I pick up.

Despite the feedback, my curiosity got the best of me. As Adam noted, the rattle is from the aperture lever mechanism. It uses a ball bearing design of 6 balls loosely spaced/separated by the use of metal bars which act like a bearing cage. The free play in this bearing is what creates the rattle noise. It all seems very well made!
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