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  1. #1
    Senior Member

    Question Beeping sound from my Sigma 17-70mm

    Just received my used Sigma 17-70mm f/2.8-4 DC Macro OS lens. Looks to be in good condition. Attached it to my D90, switched it on and the lens was making a quiet beeping sound almost like morse code (maybe someone is sending me a subliminal message). It is there whether it is on auto, manual, OS on or off. I have never heard a lens making this sort of noise before. I have never owned a Sigma lens so is this normal?

    Thanks

    Brian


    › See More: Beeping sound from my Sigma 17-70mm
    Nikon D90 with MB-D80 battery pack, Nikon F75
    Hoya NDx400 filter plus UV filters for all lens
    AF-S Nikkor 55-300mm 1:4.5 -5.6
    Nikon SB-600 Speedlight



  2. #2
    Senior Member
    FredKingston's Avatar

    Re: Beeping sound from my Sigma 17-70mm

    If the lens is similar to the Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM, it uses an ultrasonic (Hypersonic, in marketing parlance) motor for focusing. These motors can be smoother (less backlash or overshoot) than traditional electromagnet-based rotary motors, but apparently the "ultrasonic" ratcheting is not quite beyond your hearing range.

    Google is your friend... There are more than a few threads in different forums about this issue with Sigma lenses. I just picked the answer from one that was self explanatory.

  3. #3
    Senior Member

    Re: Beeping sound from my Sigma 17-70mm

    Thanks for that. I am sending it back and try to get one without this problem. MPB has a few so might exchange it. I quite like this lens though.

    Brian
    Last edited by meddyliol; 11-09-2019 at 09:16 AM. Reason: Additional text
    Nikon D90 with MB-D80 battery pack, Nikon F75
    Hoya NDx400 filter plus UV filters for all lens
    AF-S Nikkor 55-300mm 1:4.5 -5.6
    Nikon SB-600 Speedlight





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