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Old Jun 16, 2012, 5:21 AM   #1
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Default N-5100 problem with metering etc

G'day all

I'm in the middle of a weekend workshop and one student's N5100 has started to misbehave

It permamently displays "Subject is too dark" > full info screen is shown below


I /we have gone thru the menus & tried to reset to factory config > can't find a menu option so worded but two are similar
I /we have swapped lens with 2nd body > same result, same msg

So - my Q is .... how can I fix / reset this or is it a sign of something worse???

I would like an answer before things start again at 0900 AEST sunday morning 17th [I am posting this at 2130 AEST]
any answers will help - we'll keep logging in thru the day to see what comes in

Many thanks, Phil
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Old Jun 16, 2012, 9:21 AM   #2
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I'm assuming you mean the D5100. Hold down the Menu button (to the left of the viewfinder) and the Info (i) button to the right of the viewfinder at the same time for a few seconds, and that should reset the camera back to factory defaults. Nikon calls that procedure a "2 button reset".

http://support.nikonusa.com/app/answers/detail/a_id/17395/~/how-to-reset-a-d-slr-to-factory-default-settings

But, you may have a component failure (metering sensor or similar) causing it, too.

Have you tried a different lens in case the Aperture is stuck closed or something similar? Or, has the lens been reseated in case it's not making a good enough connection?

Most newer lenses wouldn't have an Aperture ring. But, if you're using a lens model that has an Aperture ring on it, make sure it's locked into the position for the smallest aperture (highest f/stop number). Sometimes that position is color coded on lenses. Then, the camera should be able to control the aperture it (keeping it wide open for metering and focusing purposes until the shot is taken). With a modern Nikon dSLR, you don't use the Aperture ring to set the Aperture if a lens has one. Instead, lock it to the highest f/stop position and the camera controls the aperture.
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Old Jun 16, 2012, 9:59 AM   #3
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I presume you've removed the lens cap.
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Old Jun 16, 2012, 11:04 AM   #4
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Quote:
Originally Posted by Ozzie_Traveller View Post
I /we have swapped lens with 2nd body > same result, same msg
So, you've put that lens on a second body and gotten the same result(?)

So, it's definitely the lens. A second lens on the first body operates correctly(?) Check the lens' aperture lever. It may be jammed or bent.
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Old Jun 16, 2012, 5:13 PM   #5
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Thanks fellas

@Jim - Thankx mate > that's what I couldn't find in her instruction book as well
The camera is fairly new and she hasn't done much with it beyond 'auto' shooting: lens is Tamron 18-270

@TC - Lens cap ... your're a cheeky bugger :-) yeah mate 2 lenses swapped between 2 cameras - her lens worked ok on 2nd camera, but 2nd lens on her camera = same result. 2nd lens was a full-frame 24-105 NIkkor

Regards, Phil
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Old Jun 17, 2012, 5:09 PM   #6
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G'day all .... just an update

Tried the '2-finger salute' 3-times but with no change to the camera operations
In full manual mode I can take an image if I set exposure to about EV-4 or -5, but using any other mode it's a complete failure

Seems like it's a back to base repair coming up
Thanks again, Phil
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Old Jun 17, 2012, 6:23 PM   #7
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How's the view through the viewfinder? Dark? Is it possible that the camera isn't opening the diaphragm, so the lens is always stopped down? When the lens is attached to the camera, do you see all the aperture blades fully extended?
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Old Jun 17, 2012, 10:45 PM   #8
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Take the lens off of the camera... Looking into the camera through the mount
there will be a small lever on the left side... That lever should be in the "up"
position... If it is in the "down" position then the aperture is not being kept
open when the lens is mounted on the camera... It may be jammed or bent,
see if it's in the up position and if not see if you can un-jam it...
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Old Jun 18, 2012, 5:33 PM   #9
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G'day TC

Quote:
Originally Posted by TCav View Post
How's the view through the viewfinder? Dark? Is it possible that the camera isn't opening the diaphragm, so the lens is always stopped down? When the lens is attached to the camera, do you see all the aperture blades fully extended?
Viewfinder looks 100% kosher & normal > just the info msg on the LCD rear screen shows what it in the OP

ps- In full-manual mode, I can expose an image if I set exposure to about -4EV maybe -6EV, but P-A-S modes are all U/S

Regards, Phil
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Old Jun 18, 2012, 5:36 PM   #10
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G'day William

Quote:
Originally Posted by Wizzard0003 View Post
Take the lens off of the camera... Looking into the camera through the mount there will be a small lever on the left side... That lever should be in the "up" position... If it is in the "down" position then the aperture is not being kept open when the lens is mounted on the camera... It may be jammed or bent, see if it's in the up position and if not see if you can un-jam it...
It is now Tuesday morning > I am still local to the camera & owner so I shall try to eyeball and check ... Thanks for the info

Regards, Phil
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