Testing VR?

MauryMaury Posts: 1Member
edited May 2015 in Nikon DSLR cameras
Our 18-200 VR (1) recently started making four faint thumps when the camera is turned on. Reading over posts here and other forums, this is either a complete disaster that requires hundreds of dollars of work, or completely normal and expected behaviour.

What the posts do have in common is they point their finger at the VR system. That leads me to my question:

How do you know if VR is working? Is there some sort of simple test I can perform?
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  • spraynprayspraynpray Posts: 6,027Moderator
    There is a rough and ready test: Half press the shutter button and sloooowly move the camera and you should see the image trying to lock onto a subject but then failing and the VR locking onto the next thing it is pointed at. Like I said, this is rough and ready so is more apparent on lenses with excellent VR than those with earlier VR. Your 18-200 could have VR1 or VR2 so could be more noticable on the newer version than the older version.
    Always learning.
  • sevencrossingsevencrossing Posts: 2,800Member
    edited May 2015
    Another rough and ready test

    Take some handheld photos at about 150mm @1/60
    first set with vr ON the other with it OFF
    the ones with VR ON should be noticeably sharper
    Post edited by sevencrossing on
  • heartyfisherheartyfisher Posts: 3,172Member
    Both versions nikkor 18-200 are functionally and optically exactly the same.. the only difference is the Zoom Locking switch..

    To test VR you would do as sevencrossing suggested .. I would use an even slower speed like 1/30.

    When I first got my 18-200 the VR failed and was swapped by nikon under warranty. But it was not faint bumps, it clunked ! GL with your testing :-)
    Moments of Light - D610 D7K S5pro 70-200f4 18-200 150f2.8 12-24 18-70 35-70f2.8 : C&C very welcome!
    Being a photographer is a lot like being a Christian: Some people look at you funny but do not see the amazing beauty all around them - heartyfisher.

  • spraynprayspraynpray Posts: 6,027Moderator
    I learn something every day, thought they upgraded the VR when they added the switch... :D
    Always learning.
  • manhattanboymanhattanboy Posts: 983Member
    Our 18-200 VR (1) recently started making four faint thumps when the camera is turned on. Reading over posts here and other forums, this is either a complete disaster that requires hundreds of dollars of work, or completely normal and expected behaviour.

    What the posts do have in common is they point their finger at the VR system. That leads me to my question:

    How do you know if VR is working? Is there some sort of simple test I can perform?
    I would do it more scientifically:
    Take a series of shots at the longest end of the zoom on a distant subject (preferably that has writing) start with VR off and a high shutter speed and shoot towards slower shutter speeds. Repeat the same with the VR on. The difference in the shutter speeds is roughly how many stops of VR you are getting. The VR is evaluated best at 100% crops as downsized images can look clean when in fact they are quite blurry.
  • heartyfisherheartyfisher Posts: 3,172Member
    I learn something every day, thought they upgraded the VR when they added the switch... :D
    to confuse things :-) .. they are both VR2 :-)

    Moments of Light - D610 D7K S5pro 70-200f4 18-200 150f2.8 12-24 18-70 35-70f2.8 : C&C very welcome!
    Being a photographer is a lot like being a Christian: Some people look at you funny but do not see the amazing beauty all around them - heartyfisher.

  • spraynprayspraynpray Posts: 6,027Moderator
    :)) @-) 8-}
    Always learning.
  • MsmotoMsmoto Posts: 5,396Moderator
    I think to test the VR, I might shoot a series of images, at least three at each setting to eliminate the hand shake variations, but try at the long focal length shutter speeds of 1/2 sec, 1/4 sec, 1/8 sec, and 1/15 sec. Shoot three each with VR on and VR off. I suspect after examining the images one would be able to determine if VR were working.
    Msmoto, mod
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