camera makes noise while shutter is locked up in 30 second exposure

Discussion in 'Digital Photography' started by MichaelBarry, Jul 19, 2009.

  1. MichaelBarry macrumors member

    Joined:
    Apr 14, 2009
    Location:
    London
    #1
    I was taking some long exposure shots with my sony A200 and kit lens. I selected the 30 second exposure time in shutter priority and while the shutter was locked up, i heard the camera making a sort of mechanical hissing (maybe from some sort of motor?) noise.

    is this normal as I cannot imagine anything moving inside the camera to make this noise?
     
  2. a350 macrumors regular

    Joined:
    Jul 8, 2009
    #2
    I am unable to reproduce any noise on the a350. Does happen every time?
     
  3. MichaelBarry thread starter macrumors member

    Joined:
    Apr 14, 2009
    Location:
    London
    #3
    yes. It is very Very quiet and happens all the time.

    I'm wandering if keeping the shutter open involves a motor of some sort to be active all the while the shutter is open?
     
  4. al256 macrumors 6502a

    al256

    Joined:
    Jun 7, 2001
    #4
    Could it be some sort of image stabilization/ vibration reduction activating in the middle of the shot?
     
  5. leighonigar macrumors 6502a

    Joined:
    May 5, 2007
    #5
    Could maybe be the VR as suggested, or it could be a little solenoid or something making a bit of a buzz.
     
  6. TheReef macrumors 68000

    TheReef

    Joined:
    Sep 30, 2007
    Location:
    NSW, Australia.
    #6
    I'd say it's the sensor moving around, I hear a similar sound on my K10D.
     
  7. a350 macrumors regular

    Joined:
    Jul 8, 2009
    #7
    I did a 30 second with the IS off and camera is silent with IS on camera was making all kinds of noise, with ear to camera.
    If you are on a tripod shooting turn off IS. It will look for movement if there is none and actually create some.
     
  8. TheReef macrumors 68000

    TheReef

    Joined:
    Sep 30, 2007
    Location:
    NSW, Australia.
    #8
    ^^Yes turn it off it will make the images more blurry if you leave it on using a tripod.
     
  9. HBOC macrumors 68020

    Joined:
    Oct 14, 2008
    Location:
    SLC
    #9
    that is really crazy. I would never have thought something that is is helpful can work against you! Is the IS in body? I am assuming as someone pointed out that the sensor moves...
     

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