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Phantom 4 Pro camera issues - overexposure.
4541 20 2017-1-29
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ROBERTO SMERA
Second Officer
Flight distance : 26997579 ft
Brazil
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Since two days ago my camera started to behave like this. I always take my pictures in Aperture Priority and ISO fixed in 100. All photos are completely overexposed and impossible to recover in ACR. Also noticed that even the shutter speed in 1/200th of a second, the pictures shows some kind of strange blur. Any help or hint would be greatly appreciated.




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2017-1-29
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TheMann58
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Roberto,

Is it only your photos that are coming out overexposed like this, or does the live image displayed on the DJI GO 4 app also look very overexposed all the time? If the live image is also overexposed all the time, you probably have the exposure adjustment set too high.  The exposure setting isn't displayed in the metadata displayed in your sample screen capture, so I can't confirm this is definitely the problem. But you can check the exposure value in the EXIF data of the photos you have taken to check this.

Check your exposure setting, which is displayed near the top of the right-hand side of your DJI GO 4 app screen.  The default neutral exposure value (EV) would be 0.0.  You may have accidentally changed this to a high positive value, such as +3.0 (very overexposed), which the DJI GO app does NOT automatically reset to 0.0 even after the P4P and its RC are power cycled.  If you need to change EV, ISO, shutter speed, etc., you do this by pressing in the right control wheel on the rear of the RC with your right index finger. With each push of the control wheel, the DJI GO app cycles to ISO, then EV, shutter speed, etc.  When you get to the camera setting you want to change, roll the wheel left or right.  Set the EV setting back to 0.0 and see if that gets your live video, photos and recorded video looking better.

Hope this helps.
2017-1-29
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ROBERTO SMERA
Second Officer
Flight distance : 26997579 ft
Brazil
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TheMann58 Posted at 2017-1-29 16:07
Roberto,

Is it only your photos that are coming out overexposed like this, or does the live image displayed on the DJI GO 4 app also look very overexposed all the time? If the live image is also overexposed all the time, you probably have the exposure adjustment set too high.  The exposure setting isn't displayed in the metadata displayed in your sample screen capture, so I can't confirm this is definitely the problem. But you can check the exposure value in the EXIF data of the photos you have taken to check this.

Hi TheMann,

I just confirmed the issue is real. I have a second unit and did a test with the two cameras pointed at the same target and with the same exposure values in A (aperture priority) mode. The bad phantom camera always overexpose the pictures by +1.95 to +2.00 stops and all the highlights become badly washed out and unrecoverable in Photoshop. Already tried to format the SD card and reset the camera settings to no avail. Should I try to revert the firmware and then update again to the latest version? Thank you.
2017-1-30
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Metron
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ROBERTO SMERA Posted at 2017-1-30 03:16
Hi TheMann,

I just confirmed the issue is real. I have a second unit and did a test with the two cameras pointed at the same target and with the same exposure values in A (aperture priority) mode. The bad phantom camera always overexpose the pictures by +1.95 to +2.00 stops and all the highlights become badly washed out and unrecoverable in Photoshop. Already tried to format the SD card and reset the camera settings to no avail. Should I try to revert the firmware and then update again to the latest version? Thank you.

I am having several issues with overexposures too,
something is clearly wrong with EV metering system,
I even had to replace the unit, yet issues are still similar.

1. If shooting in Auto mode, camera chooses iso, f-stop, shutter speed and EV=0,
I then switch to manual mode and choose the same three settings,
yet EV jumps to EV=-2 two full stops,
yet the unit before that would be showing EV=-2 and the image is already way overexposed,

2. Another issue is that EV changes depending on Color profile,
and I noticed switching from NONE to D-Log give sudden change of two full stops,

it is all confusing and does not make sense,
I tried to contact to DJI as well as the distributor, providing the results,
yet nobody is giving any answer

For a reference,
I own P3P and did all the same tests and P3P works consistently,
EV metering system is consistent based on three settings defining exposure.

yet P4P behaves erratically, and it depends if it is Auto/Manual mode,
Photo/Video mode, Color profile mode, too many variables

At this point I do not know if it is hardware or firmware/software issue.

I saw some videos when users toggle color profile on P4P and EV value stays the same,
so I am also wondering if it is related to firmware update.

Did you have any luck reverting firmware ?
(it is probably a hassle to do it though )
2017-2-7
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Metron
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Metron Posted at 2017-2-7 20:34
I am having several issues with overexposures too,
something is clearly wrong with EV metering system,
I even had to replace the unit, yet issues are still similar.

and I also can see that if shooting in Aperture priority mode  it will automatically compensate those two stops and make the image overexposed,
I just did not test AV mode, since I always shoot in Manual
2017-2-7
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CyFA
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Cyprus
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I had the exact same problems with overexposed and not so focused ... and later it just hanged like dead.
I downgraded and it seemed ok but a few flights later other problems appeared.
2017-2-7
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WindSoul
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Canada
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shutter speed 1/200 is too long for regular apertures >f/14, on a sunny day. even at f/8 a time of 1/500 could lead to over exposure.
i own a p4 where the aperture stays at f/2.8 (yours is more versatile). is it possible that instead of aperture you do full manual? did you shift the ev manually?if the video looks ok, then maybe is just a setting.
2017-2-7
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DJI_camera
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Hong Kong
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Tip: The post by the administrator or moderators shield
2017-3-2
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EPT160
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Australia
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Metron Posted at 2017-2-7 20:34
I am having several issues with overexposures too,
something is clearly wrong with EV metering system,
I even had to replace the unit, yet issues are still similar.

Roberto / Metron

Did you have any luck solving this 'over expose' issue?

I am now also having the issue. Images/histogram/exposure all look good when taking shots, but end up being 2+ stops over. Almost as if the aperture is not stopping down. However videos shot at same time with same settings are fine.

I have found that switching off the 'mechanical shutter' seems to correct the issue. But now wonder if
I have a failure with the mechanical shutter?
2017-3-19
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Hooks
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I have a client with this issue currently and we are suspecting a bad mechanical shutter or Firmware related issue...  The problem started for this client just after updating to the latest firmware.  We may get a chance tomorrow to roll back the firmware to see if this cures the problem.  

I own a p4p myself and I have tried everything I can think of to replicate the issues that my client is experiencing.  I am on the latest firmware as well using the same IOS devices as my client.  If it is a firmware issue, I suspect it will be due to partially corrupted firmware.

We suspect the mechanical shutter because it is not making a click sound while taking photos despite the shutter being engaged in the settings.  The client compared the sound between a working p4p and the faulty p4p to confirm that the shutter was not firing.

I will post back when I learn more.
2017-4-5
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ROBERTO SMERA
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Hooks Posted at 2017-4-5 17:29
I have a client with this issue currently and we are suspecting a bad mechanical shutter or Firmware related issue...  The problem started for this client just after updating to the latest firmware.  We may get a chance tomorrow to roll back the firmware to see if this cures the problem.  

I own a p4p myself and I have tried everything I can think of to replicate the issues that my client is experiencing.  I am on the latest firmware as well using the same IOS devices as my client.  If it is a firmware issue, I suspect it will be due to partially corrupted firmware.

I just disabled the Mechanical Shutter and now the exposure is spot on without blown unrecoverable highlights. I think we may conclude it is an issue with mechanical shutter.
2017-4-6
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Hooks
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ROBERTO SMERA Posted at 2017-4-6 06:23
I just disabled the Mechanical Shutter and now the exposure is spot on without blown unrecoverable highlights. I think we may conclude it is an issue with mechanical shutter.

Yep, thats where we are as well.  This morning we tired refreshing the firmware and testing to no avail. Then we downgraded the firmware with no luck.  Finally upgrading firmware to the latest, the problem persists.  I was really hoping that something in the firmware had caused the issue and that this would solve it.

Looks like the unit will be heading back to the dealer.

I will continue to post back to this thread if I learn more.
2017-4-6
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Hooks
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ROBERTO SMERA Posted at 2017-4-6 06:23
I just disabled the Mechanical Shutter and now the exposure is spot on without blown unrecoverable highlights. I think we may conclude it is an issue with mechanical shutter.

Did your p4p start acting up after a firmware upgrade? Did the camera ever take any knocks that you know of?
2017-4-6
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ROBERTO SMERA
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Hooks Posted at 2017-4-6 10:18
Did your p4p start acting up after a firmware upgrade? Did the camera ever take any knocks that you know of?

No, the problem appeared after a random sequence of pictures and then the camera never functioned as it should anymore. When I disabled the mechanical shutter on menu the issue was solved. I do not use my Phantom to film so it will not go back to my dealear. I will live with that.
2017-4-6
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Hooks
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ROBERTO SMERA Posted at 2017-4-6 10:32
No, the problem appeared after a random sequence of pictures and then the camera never functioned as it should anymore. When I disabled the mechanical shutter on menu the issue was solved. I do not use my Phantom to film so it will not go back to my dealear. I will live with that.

Thanks for sharing your problem with us so we don't feel so alone in this.

I have linked this thread to another thread dealing with the issue.  link

2017-4-6
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DJI P4 PRO USER
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Bro, in automatic setting.. try to click in ISO setting to uncheck(remove the blue color) then set it to ISO 100.  I just try it works fine. Let me know.thanks
2017-10-19
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BlueBirdTN
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So is this why the EV value cannot be changed when in Manual Mode.
2017-10-22
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FREGADOLLI
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Hello, I'm from Brazil; The same problem is happening to me !!! I made all the updates; I switched cell phones; I changed memory; I reset a camera; and it continues the same way! Shoot in white the photo !! I do not know what else to do !
2018-10-22
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Labroides
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FREGADOLLI Posted at 2018-10-22 13:39
Hello, I'm from Brazil; The same problem is happening to me !!! I made all the updates; I switched cell phones; I changed memory; I reset a camera; and it continues the same way! Shoot in white the photo !! I do not know what else to do !

Have you read post #2 and checked that on yours?
That is the usual solution.
2018-10-22
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ROBERTO SMERA
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FREGADOLLI Posted at 2018-10-22 13:39
Hello, I'm from Brazil; The same problem is happening to me !!! I made all the updates; I switched cell phones; I changed memory; I reset a camera; and it continues the same way! Shoot in white the photo !! I do not know what else to do !

Hi Fregadolli,

The only way I found to avoid the overexposure issue in picture mode is to disable the mechanical shutter on camera menu.
2018-10-23
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boggie
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Serbia
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Hi,

I must post here because I can't start a new thread...
I bought my P4P two years ago end never had a problem with it. But yesterday when I took a fly, I made some photos and video. Everything was nice on the display of my phone, but when i looked I put memory card in my laptop - what is happened!!??? Videos looks great, but still photos, overexposed, everything is washed...
I was disapointed, start reading forums and make I conclusion after reading some posts where users having the same problem that mechanical shutter don't working. When I turn off mechanical shutter everything is ok. I turn on, overexposed. Both auto mode, manual..
What now? My warranty expired.
I think that only way to fix this is to change the camera. But that is very expensive.
Live with this? Is there any differences between photos with and without mechanical shutter? I mostly shooting stacionary things, cities, panoramas, only sometimes moving subjects..
Enyone who has succeeded in solving this problem?
Thanks!
1-6 04:08
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