Open

by damned truths

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Take the 2-minute tour ×
Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It's 100% free, no registration required.

Recently I have noticed that my Nikon D90 makes a strange sound and sort of shifts mirror up if you look at the viewfinder eyepiece after you release the shutter-release button.

If you try to shoot it via Live View, you don't see this issue at all.

It only happens when you try to shoot without live view, you literally can see in the viewfinder eyepiece that something(probably mirror) shifted a little to upward position, plus you can hear a short noise when it gets shifted after shutter-release button was released.

Did anybody had this kind of issue? Any solutions about fixing it?

Thanks.

I guess I wasn't quite clear in my explanations. The thing is, the flip-up mirror, literally flips up a little bit(probable several milimeters), after you took a picture. So what you see in the viewfinder after you release the shutter, is that the area that you see gets shifted upwards, kind of like your mirror got stuck somewhere, and then shifted to it's original position. Plus the strange sound is still there after you take a picture using a Live View. Did anybody had this kind of issue? I'm not sure it's a hardware mulfunction or not. I had this camera for 3 years, and never encountered this kind of problem.

share|improve this question

4 Answers 4

You have a DSLR, or digital Single Lens Reflex camera. There is indeed a mirror that redirects light from the lens up through the pentaprism into the viewfinder. When you press the shutter button, the mirror has to "flap" up, covering the bottom of the viewfinder pentaprism to block out any light that may come in there, allow exposure, then flap back down. That happens for every shot unless you use a mirror lockup feature, however with mirror lockup, you can't actually see your subjects through the viewfinder between each frame.

enter image description here

share|improve this answer
    
In addition, it doesn't happen in Live View because the mirror is permanently up in this mode to allow light to constantly hit the sensor. –  ElendilTheTall Apr 22 '12 at 14:15
    
Thank you, I guess I wasn't quite clear in my explanations. The thing is, the flip-up mirror, literally flips up a little bit(probable several milimeters), after you took a picture. So what you see in the viewfinder after you release the shutter, is that the area that you see gets shifted upwards, kind of link your mirror got stuck somewhere, and then shifted to it's original position. Did anybody had this kind of issue? I'm not sure it's a hardware mulfunction or not. I had this camera for 3 years, and never encountered this kind of problem. –  Kanat Apr 22 '12 at 14:19
    
@Kanat: Generally speaking, the mirror, when it flips up, should flip up all the way and completely block light to the viewfinder. If you can indeed SEE the mirror during and after the shot is taken before it flips down, there might actually be something wrong. I would take it to a Nikon dealer and see if they offer any kind of repair service, or send it in to Nikon for repair. You shouldn't be able to see the mirror when it flips up...all you should see through the viewfinder is blackness. –  jrista Apr 22 '12 at 15:24

It looks like the reflex mirror is not resetting correctly after you take a picture. This likely means that there is a problem with the mirror mechanism. In this case, your D90 will likely need to be serviced.

share|improve this answer

Check your settings, there's a setting called "Exposure Delay Mode" in the shooting/display menu ( d10 menu item ), for special cases, where the mirror is flipped up a second before the picture is exposed. The setting is for astrophotography, where the torque of the mirror flipping might shake the camera slightly, so the setting flips the mirror, then waits to take the picture. After the picture is exposed, the mirror returns. You're hearing the mirror flip, then the shutter, then the mirror returning.

share|improve this answer

It's the VR element in your VR lens that's moving. The click you hear is the VR system turning on and off.

share|improve this answer
    
If that were the case, the sound would also be apparent in live mode, while the OP states the noise doesn't occur in live mode. –  Therealstubot Aug 14 '12 at 20:51

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.