Why is my Nikon D90 taking very long exposures and showing “Job nr” in M/A/S/P modes?
Asked 9/25/2013
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My Nikon D90 takes very slow shutter-speed shots in Manual, Aperture Priority, Shutter Priority, and Program modes. After the exposure, the camera pauses for around 10 seconds and sometimes shows “Job nr,” then the photo comes out blank. Other shooting modes seem to work normally, so I’m not sure if the camera is faulty or if a setting is causing it. What should I check?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
12y ago
2 Answers
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It sounds like the pause is the long exposure noise reduction. You are probably getting a blank image because it is over-exposing (is it white or black?). The question is, why are your getting such long exposures.
Some things to check, during non-auto shooting, there is an exposure compensation adjustment that will alter the level of exposure, make sure that this is set to 0, if it is set to a large amount of over-exposure, it could extend the shutter speed. I'm not sure why this would be in manual or S modes though as that should give a fixed shutter speed based on your setting.
It is also possible that there is a defect with the camera, but it would be a very odd defect. Does the actual time displayed for the shutter when you are taking the photos display correctly? (Does it actually match the time the shutter stays open?) If so, then you need to figure out why it is taking such long exposures, if not, then something much weirder is going on.
Originally by user11392. Source · Licensed CC BY-SA 4.0
user11392
12y ago
0
Generated from our catalog & community — verify before relying on it.
“Job nr” usually means long-exposure noise reduction is running. After a long shutter speed, the camera takes a second dark frame, which causes the pause.
The bigger issue is why the camera is choosing or allowing such long exposures. If the resulting image is blank white, it’s likely badly overexposed; if blank black, it may be metering as if the scene is very dark.
Things to check:
- Make sure exposure compensation is set back to 0.
- In M and S modes, confirm the displayed shutter speed is really what you expect.
- Remove and remount the lens so the contacts seat properly.
- If possible, try another lens to rule out a lens/contact problem.
Because it happens across P/A/S/M modes, a metering or lens communication issue is possible. If reseating or changing the lens doesn’t help, the camera may need service.
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