Very strange occurance with my D90...

Discussion in 'Photography Beginners' Forum' started by anm90, Mar 7, 2010.

  1. anm90

    anm90 TPF Noob!

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    So I was taking some photos down by the beach this evening, attempting to do some long exposures with my tripod. The camera was working fine for a while and then suddenly it decided to go haywire on me. The aperture would not go below f/36 on the info screens in camera and it would go all the way up to f/90 when I moved the dial around. The shutter speed appeared to be working normally, but I could not get a solid meter reading even when the camera was not moving at all and the scene was not changing either. I took this picture while it was freaking out and the "settings" were recorded in the metadata. I am very confused and somewhat concerned about what happened. Shortly after this happened and after restarting the camera several times, everything returned to normal and I continued to get a few more shots. After getting home, I looked at the camera and lens and could not see any visible condensation or anything of that sort. Could that have caused these kinds of issues?

    Here is the photo, and the metadata that was recorded for it...

    I was using the kit lens, 18-105mm, at around 18-35mm focal length (don't remember where I had it exactly but it wasn't very far away from the wide end).

    [​IMG]

    Camera Maker: NIKON CORPORATION
    Camera Model: NIKON D90
    Image Date: 2010:03:06 21:17:56
    Focal Length: 195.0mm (35mm equivalent: 292mm)
    Aperture: f/36.0
    Exposure Time: 3.000 s
    ISO equiv: 200
    Exposure Bias: none
    Metering Mode: Matrix
    Exposure: Manual
    Exposure Mode: Manual
    White Balance: Manual
    Flash Fired: No
    Color Space: sRGB
     
  2. Santa Gertrudis

    Santa Gertrudis TPF Noob!

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    Was the lens loose maybe? Like not locked all the way in to the mount?
     
  3. anm90

    anm90 TPF Noob!

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    It could have been... I'm not entirely sure why though because I don't remember moving it. Maybe I bumped the release button on accident and the lens moved a tiny bit?
     
  4. Santa Gertrudis

    Santa Gertrudis TPF Noob!

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    I was just thinking if the contacts weren't quite lined up properly, it might do some weird stuff. Just a thought.
     
  5. AnthonyS

    AnthonyS TPF Noob!

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    Very odd, I have had some odd things when my battery was very low. Nothing like that, hope it stop acting up
     
  6. KmH

    KmH Helping photographers learn to fish Supporting Member

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    Just a thought.

    Was the camera mounted on a tripod?

    If so, did you have the VR turned off?

    If not, the VR was moving inside the lens and your metering point was jumping all over the place.

    VR has to be turned off when it's mounted on a tripod.
     
  7. BuS_RiDeR

    BuS_RiDeR No longer a newbie, moving up!

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    I agree with KmH...

    But... perhaps you got sand in the camera? As far as I know the D90 is not completely weatherproof.

    Isn't troubleshooting fun?
     
  8. anm90

    anm90 TPF Noob!

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    It was on a tripod, and VR was turned off. I did make sure of that.

    As for the sand, I'm not sure how that would have happened... it was absolutely dead calm air and I didn't put the camera on the ground or anything.

    Come to think of it, I've had another strange occurrence once before as well. This was during my photo walk the other day, actually. After taking the picture of the flower that I posted, I was reviewing images and walking and the camera made a sound like the mirror / shutter opened up and the aperture values went to F-- and wouldn't change. I could see through the viewfinder so the mirror wasn't locked up, and the other dials worked fine. I had to remove the lens and put it back on for it to work again. Was very odd.
     
  9. KmH

    KmH Helping photographers learn to fish Supporting Member

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    Did you look in the back of your camera users manual to see what the error code F-- means?
     
    Last edited: Mar 7, 2010
  10. JimmyO

    JimmyO TPF Noob!

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    Bad connectiong between lens and camea, either not completly attached, or something on the contacts
     
  11. TJ K

    TJ K No longer a newbie, moving up!

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    Ya sounds like the contact problems maybe your lens or both.
     
  12. BuS_RiDeR

    BuS_RiDeR No longer a newbie, moving up!

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    I just suggested the sand as an option... Cause you said you were "near" a beach. But if you can eliminate that its good.

    From what I see in the forum... sounds like the problem is between the camera and leans.

    Good luck with the solution. Post it here when you figure it out. It would be interesting yo know... even though I am a Canon user. :)
     

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