Question about Nikon N90S 35mm SLR Camera
I have not used the Nikon N90s for a long time. When I replaced a new set of batteries and turned it on...the lcd says A ERR. Then after a few seconds the camera automatically turns itself off... What does the A ERR stand for?
What is the problem?
There are several situations when this message happens and the camera locks up, and almost none of them has anything to do with the cause stated in the camera manual: film DX coding error. (If it is truly a DX-coding error, manually setting the ISO speed of the film should solve the problem. This could happen in cold weather.) Scenario One: when using Alkaline batteries and the batteries are almost exhausted, and yet one continues to shoot. The battery may not have enough power to complete the shutter firing operation (which usually includes: mirror up, close down diaphragm, shutter fire, mirror down, open diaphragm, advance film, and charge the shutter for next frame). The camera could be lock up in the middle of the operation, left with a dimmed viewfinder. Usually an indication appears quite early if one pays attention: when the batteries are almost exhausted, the film advance becomes noticeably slow. In normal situation film advance is very fast and one cannot distinguish it from other noise such as mirror flipping. When the batteries almost exhausted, the film-advance could take almost 1 second, and the noise of film advancing has been mistakenly identified by some as "beep". I think those is the result of over-adjustment for the Premature Battery Indication problem. This scenario is particular to using alkaline batteries, due to the peculiar behavior of the alkaline battery: even when its power is almost exhausted, it still has a pretty high voltage. Solution: replace the batteries and fire the shutter once should solve the problem. I am pretty sure this is normal, since it happened to me several times, and I once deliberately repeated this happening. Scenario Two: At the end of a roll, when the remaining film is too short for one more frame but long enough to fool the camera, the camera could end up with "Err" message. Solution: rewind the film and load with the new one, and possibly fire the shutter once could solve the problem. (This has never happened to me, but summarized from other’s reports.) Scenario Three: I've heard of two reports: happened in the middle of a roll, with sufficient battery power. I have no idea what’s going on. (Could be really a DX-coding problem, which does not necessarily occur just at the beginning of a roll.) Solution: probably should send the camera in for a check. (Also, both reports of this problem occurs while using Kodachrome films.)
Posted on Oct 15, 2008
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Posted on Jan 02, 2017
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The FEE error message
Set to F22, or the highest aperture number - normally marked in orange. Note the locking switch.
If the above did not resolve the problem and you still experence the the error display FEE, please contact your local Nikon office. Before doing so please also check the following.
That the EE servo coupling highlighted above on the lenses has not been broken. That the F-min switch highlighted above on the camera body has not been broken. If either of the two items above are broken please contact your local Nikon service center.
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