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Nikon 810 Overexposes
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Jun 13, 2018 17:01:36   #
jjfried40
 
Thanks, I worked my way up the dial from f/8 to f/22 and there is a progression of overexposure.
I'll try another lens.

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Jun 13, 2018 17:15:21   #
jjfried40
 
More on possible stuck blade as a cause of overexposure: I did a quick search on issue. According to an article on dpreview, you can use the depth-of-field button on the camera to help determine if the blades are sticking. If you press the button and the viewfinder becomes instantly darker, the blades are functioning properly. If the viewfinder slowly gets darker, the blades are sticking.
When I press the button, the viewfinder grows immediately darker.

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Jun 13, 2018 17:27:24   #
Jesu S
 
jjfried40 wrote:
More on possible stuck blade as a cause of overexposure: I did a quick search on issue. According to an article on dpreview, you can use the depth-of-field button on the camera to help determine if the blades are sticking. If you press the button and the viewfinder becomes instantly darker, the blades are functioning properly. If the viewfinder slowly gets darker, the blades are sticking.
When I press the button, the viewfinder grows immediately darker.


Since you are unable to attach a photo, there is really no point in continuing this discussion.

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Jun 13, 2018 18:45:38   #
Joe Blow
 
jjfried40 wrote:
... you can use the depth-of-field button on the camera to help determine if the blades are sticking. ...

When I press the button, the viewfinder grows immediately darker.


Excellent suggestion.

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Jun 14, 2018 06:46:39   #
Howard5252 Loc: New York / Florida (now)
 
There is an HDR setting in the Shooting Menu - Make sure it's off; also push the Info button (lower right back of camera) then push the BKT button (left front) make sure the setting that shows on the screen is 0F (zero F); the rear wheel will control the number.

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Jun 14, 2018 06:52:01   #
Tracht3
 
What is your shooting mode on ie M S A or P? Next is your isolated on auto? What is your EV set to?

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Jun 14, 2018 06:53:38   #
Tracht3
 
Iso spell checker error

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Jun 14, 2018 06:59:15   #
James Wood Loc: Midland, Virginia
 
My Canon doesn't do this. Buy a Canon. My wife had a Nikon... she switched to a Canon.

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Jun 14, 2018 08:55:28   #
camerapapi Loc: Miami, Fl.
 
Whatever it is there is no excuse after paying $270 and still having the same problem. What kind of a repair did Nikon do? They are supposed to have excellent quality control with a repaired product before sending the product back.
Or it is a sticky diaphragm blades or there is something wrong with the meter and this is only my opinion, it could be something else but what I find unacceptable is paying Nikon for a "repair" that has not been fixed.
If the camera cannot be fixed they should give you options or send you a new camera.

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Jun 14, 2018 09:29:03   #
CatMarley Loc: North Carolina
 
jjfried40 wrote:
Hello,
Sporadically, my Nikon 810 overexposes photos to the extent of almost providing a bright, white frame.
Nikon asked me to shoot some photos and ISO 100 and send them the results to analyze. Which I did. Upon viewing the samples, tech support suggested I send the camera in for repair. I did, to the tune of $270. Supposedly, they adjusted the camera. The first time I went out with, the problem recurred.
Attached are a couple of samples, shot at ISO 64. But results are the same in ISO 100 and different shutter speeds.
Any ideas?
Thanks,
John
Hello, br Sporadically, my Nikon 810 overexposes p... (show quote)


Looks like it may be the lens is faulty, not the camera. Your lens may not be stopping down. Either the blades are sticky, or the contacts are dirty. Try another lens. If it turns out to be only one lens, you have your answer Sent the lens in for service.

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Jun 14, 2018 12:06:12   #
Wmetcalf Loc: Rogersville, Mo
 
jjfried40 wrote:
Thanks, I worked my way up the dial from f/8 to f/22 and there is a progression of overexposure.
I'll try another lens.

This sure seems to be a stuck aperture blades problem

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Jun 14, 2018 12:18:26   #
via the lens Loc: Northern California, near Yosemite NP
 
jjfried40 wrote:
Hello,
Sporadically, my Nikon 810 overexposes photos to the extent of almost providing a bright, white frame.
Nikon asked me to shoot some photos and ISO 100 and send them the results to analyze. Which I did. Upon viewing the samples, tech support suggested I send the camera in for repair. I did, to the tune of $270. Supposedly, they adjusted the camera. The first time I went out with, the problem recurred.
Attached are a couple of samples, shot at ISO 64. But results are the same in ISO 100 and different shutter speeds.
Any ideas?
Thanks,
John
Hello, br Sporadically, my Nikon 810 overexposes p... (show quote)


So, perhaps the problem is the user? Have you checked your exposure compensation dial? Or perhaps it's some other button or dial you accidentally set.

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Jun 14, 2018 13:31:18   #
Howard5252 Loc: New York / Florida (now)
 
So have you tried another lens on your body yet OR put the lens onto abother body? It is the easiest way to isolate the trouble to either the lens or the camera. Do it and the advice will then zero in on the trouble.

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Jun 14, 2018 14:05:58   #
BebuLamar
 
If the lens aperture is sticky it would gives correct exposure when shoot wide open. The overexposure will be more severe as the lens is stopped down. If the light meter is dead then shooting in live view would not have a problem.

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Jun 14, 2018 17:04:59   #
CO
 
jjfried40 wrote:
The photo comes in at 20.9 mb. Sorry, but I can't figure out a way to reduce it to less than 20.9 and keep it in its original form. If I try to reduce the size in Photoshop in any way, and save it as a RAW file, I get message that doing so will mean that some attributes will not be encoded.
I think I need to abandon this query, but thanks for offering help.


You can resize it and it will still retain the metadata. I just took a Nikon RAW (.NEF) file and saved it as a .jpeg. It was 3264 x 4928 pixels and 1.8 megabytes. I then took that .jpeg and resized it to 1271 x 1920 pixels. It was then 403 kilobytes. All of the metadata is still there. Just resize your photo and it will be a small enough file to upload to the UHH site.

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