Hi there folks, I've been further testing this camera, and this has me puzzled, it has happened in several situations, in normal mode, as well as in supernight mode. A shifting vignette effect appears when the camera has some side to side movement, as is seen in this example by pedalling standing up. Looks like the autoexposure of the camera is trying to expose to the center matrix, but it changes so fast that creates this effect. Here it is very apparent. Please let me know if this is normal, or if there is some kind of problem with my unit. The settings used were D-Log M 1/200 Iso 100/12.800

Hi hgamelas, looking at some of my videos I took, yes, it looks like this is the same behaviour where there is some vignetting effect. DJI needs to fix this as most cameras have the vignetting/ optical distortion corrections done within the camera. It's fixable IMO.

I get the same sometimes. I think it might be to do with stabilisation. Try turning it off to see if that vignetting happens then.

You know, the more I see with colour profiles, vignetting, ISO, HDR, etc, the more I feel like returning to the 4. I still feel that the Action 4 might be the sweet spot in terms of performance and price.

Hi hgamelas,

Thank You for reaching out. We are truly sorry for the inconvenience you are experiencing. Thank you for your feedback. After confirmation, this phenomenon is normal. Manual exposure is more akin to the ISO mode of traditional cameras, favoring shadow performance in dynamic range allocation, thus preserving more room for post-processing. In auto exposure mode, the Osmo Action 5 Pro behaves more like the EI mode of cinema cameras, favoring highlight performance in dynamic range allocation. Thank you for your support.

That can’t be right. The exposure changes on the sides, not overall. Manual exposure doesn't cause vignetting.

FfoSuy Posted at 12-12 18:05
Hi hgamelas, looking at some of my videos I took, yes, it looks like this is the same behaviour where there is some vignetting effect. DJI needs to fix this as most cameras have the vignetting/ optical distortion corrections done within the camera. It's fixable IMO.

You think its related to the lens vignetting not being corrected?
I'm not sure, seem to be related to the exposure matrix, as I only notice this in high iso situations.
Going to do more tests to figure out.

DJI Gamora Posted at 12-13 03:17
Hi hgamelas,

Thank You for reaching out. We are truly sorry for the inconvenience you are experiencing. Thank you for your feedback. After confirmation, this phenomenon is normal. Manual exposure is more akin to the ISO mode of traditional cameras, favoring shadow performance in dynamic range allocation, thus preserving more room for post-processing. In auto exposure mode, the Osmo Action 5 Pro behaves more like the EI mode of cinema cameras, favoring highlight performance in dynamic range allocation. Thank you for your support.

That explanation is very strange.
What seems to be happening here is the camera is trying to expose to a center matrix, and the values are being confused by the sideways movement.
Never seen vignetting caused by manual exposure...
This has happened with auto exposure as well, it allways happens in high iso situations, could be related to the eletronic image stabilization, or the exposure matrix.
Anyway, I'm not really happy with the perfomance of this camera, and am considering returning it and gettin the Ace Pro 2, if it eventually gets to be available sometime.
I really like OA5p for its size, screens, wireless mic compatibility and image quality in good light, but i shoot mostly in poor lighting conditions, dusk and night, as well as indoors, and am getting very questionable results...

hgamelas Posted at 12-13 03:28
You think its related to the lens vignetting not being corrected?
I'm not sure, seem to be related to the exposure matrix, as I only notice this in high iso situations.
Going to do more tests to figure out.

Hi hgamelas,

Yes, and it looks like it. Less light hitting the sensor near the sides should be the primary cause ...which is quite typical ...and this needs to be corrected. In lower light conditions...which translate to higher ISOs, the effect would be more pronounced. I'm no optical expert but has done some work in optical design during my younger days...

There is a nice article explaining about this phenomenon:
https://www.edmundoptics.com.sg/ ... 20sensor%20is%20too,or%20sensor%20size%20must%20increase.

I believe the DJI guys can do something about this ....I mean other camera manufacturers do this all the time to correct vignetting effect from the lens via image processing which should vary according to the ISO setting.

Iancraig10 Posted at 12-13 03:27
That can’t be right. The exposure changes on the sides, not overall. Manual exposure doesn't cause vignetting.

You're absolutely right Fish!

FfoSuy Posted at 12-13 05:45
Hi hgamelas,

Yes, and it looks like it. Less light hitting the sensor near the sides should be the primary cause ...which is quite typical ...and this needs to be corrected. In lower light conditions...which translate to higher ISOs, the effect would be more pronounced. I'm no optical expert but has done some work in optical design during my younger days...

Hi FfoSuy after reading the article you posted, it seems very plausible to be an optical correction problem, being exacerbated by the high iso situations, coupled with sideway movement!Lets hope that Dji corrects this!!

hgamelas Posted at 12-13 06:25
Hi FfoSuy after reading the article you posted, it seems very plausible to be an optical correction problem, being exacerbated by the high iso situations, coupled with sideway movement!Lets hope that Dji corrects this!!

Let's hope so.....

FfoSuy Posted at 12-13 06:26
Let's hope so.....

Perhaps on the Action 6 =D

We reported this problem several times by different users, and there is still no fix for that.

It's most pronounced using Horizont balancing with D-LogM.
The strange thing is, it's fixed if you are using Normal color profile. D-LogM/HLG is affected by this problem, which is incorrect periferal illumination correction before applying EIS.

I have a workflow to fix this in post, but it's a pain in the as*

Deadcode Posted at 12-15 00:16
We reported this problem several times by different users, and there is still no fix for that.

It's most pronounced using Horizont balancing with D-LogM.

Hi there. Could you please send us the original material showing the problem so that we can better help you?

DJI Tony Posted at 12-15 01:14
Hi there. Could you please send us the original material showing the problem so that we can better help you?

Hi Tony!

You can find my first related post here:
https://forum.dji.com/forum.php?mod=redirect&goto=findpost&ptid=321804&pid=3447608

And i just created new raw footage for you:
https://drive.google.com/drive/folders/1PY-Rv2_HjoMWGzVqV4bWLazy-tpdRVfY?usp=sharing

This contains the original files from the camera and one processed file where you can see: it can be fixed with correct vignette correction.

Oh and what's happening on the video: left-right camera shake in front of an evenly illuminated wall.

Nice sample clips Deadcode.
This happens a lot, and its quite anoying...

Deadcode Posted at 12-15 05:49
Hi Tony!

You can find my first related post here:

Thank you for your materials, we have passed it on to the relevant engineers.

Deadcode Posted at 12-15 00:16
We reported this problem several times by different users, and there is still no fix for that.

It's most pronounced using Horizont balancing with D-LogM.

Hi, there
After confirming with the relevant team.
It may caused by Exposure flashes.
Could you please provide the original footage with the frame rate set to 30 frames (the footage with the DJI file name directly exported by the camera,)
Our engineering team will check it further for you.

DJI Wanda Posted at 12-16 22:41
Hi, there
After confirming with the relevant team.
It may caused by Exposure flashes.

Hi Wanda!

I just uploaded the files with the original name to the same place:

https://drive.google.com/drive/folders/1PY-Rv2_HjoMWGzVqV4bWLazy-tpdRVfY?usp=sharing

I also uploaded a 2nd test with locked exposure to ISO100 1/800, with 4K 30fps Horizont Balancing.
I also uploaded one corrected example how it should look like, once again.

Please tell the engineers: the only difference in these tests are the color profile. And the problem isnt there with the normal profile, but with the HLG/D-LogM

Thank You.

Deadcode Posted at 12-17 01:59
Hi Wanda!

I just uploaded the files with the original name to the same place:

Hi, there
Thanks for your update.
We have forwarded these information to our engineering team.
We will get back to you as soon as possible.
Thanks

Hi hgamelas, thank you for this! I am also experiencing this and currently have an open case with DJI Support. In fact, I'm uploading log files at this moment.

I noticed this when recording before sunset, but just now, I was able to reproduce it before sunrise.
Regular video mode (although yes, in certain cases, Super Night mode may be better, but I wouldn't use that for 30 minutes before sunset).

Settings:
4K 24 FPS
Auto Exposure with -0.3 EV
ISO range 100-1600 (yes, probably could've increased the upper limit)
WB locked at 5600 (yes, probably could've gone lower)
D-Log M 10 bit
Bitrate High
Texture -1
Noise Reduction -1

vulcankat3 Posted at 12-17 04:45
Hi hgamelas, thank you for this! I am also experiencing this and currently have an open case with DJI Support. In fact, I'm uploading log files at this moment.

I noticed this when recording before sunset, but just now, I was able to reproduce it before sunrise.

I get this a lot, but mostly in low light when the camera is working near or at its limits of iso and shutter speed, with movement.It looks like the case you are describing as well.
Could be a optical vignetting correction issue, or something regarding the exposure metering.
Lets hope Dji fixes it quickly!

hgamelas Posted at 12-17 05:00
I get this a lot, but mostly in low light when the camera is working near or at its limits of iso and shutter speed, with movement.It looks like the case you are describing as well.
Could be a optical vignetting correction issue, or something regarding the exposure metering.
Lets hope Dji fixes it quickly!

There is no exposure metering / adjusting when you shoot full manual like i did....

Deadcode Posted at 12-17 10:00
There is no exposure metering / adjusting when you shoot full manual like i did....

Your are right, I havent noticed you locked the iso as well!
So the problem has to lie on the optical correction then!

Deadcode Posted at 12-17 01:59
Hi Wanda!

I just uploaded the files with the original name to the same place:

Hi Deadcode. Thank you for your feedback. This phenomenon is normal. To ensure low latency in preview, Action 5 Pro uses different stabilization filtering strategies for preview and recording. There will be slight jerkiness in preview when the motion changes suddenly, but it will not affect the final film. Please rest assured. Thank you for your support.

DJI Tony Posted at 12-18 04:39
Hi Deadcode. Thank you for your feedback. This phenomenon is normal. To ensure low latency in preview, Action 5 Pro uses different stabilization filtering strategies for preview and recording. There will be slight jerkiness in preview when the motion changes suddenly, but it will not affect the final film. Please rest assured. Thank you for your support.

Everyone else can see the problem what i did reported, except the admins. They  should be more aware about how the camera works, than everyone else.

Noone talked about stabilization issues while previewing the footage, not a single commenter in this topic. Should i repeat what is our problem, should i rephrase it with simpler sentences, or is it enough if you re-read my previous posts?

Reopen the trouble ticket please to the engineers with the following statement: “they didnt buy it”
And force them to actually look at the footage i provided

Well, if that is ‘normal’ it’s time to move on. The camera has an inherent problem with its picture when used as an action cam. We don’t get this with other action cams…….

This is not normal, perhaps its best if we all open different tickets with the same subject, to get their attention...

Maybe editing the video and adding visual aids(big arrows with pauses )could help remove the language barrier, even though the issue is clear in the first post's video.

peloncr Posted at 12-18 14:21
Maybe editing the video and adding visual aids(big arrows with pauses )could help remove the language barrier, even though the issue is clear in the first post's video.

This is a standard DJI response

"We're investigating it"

And if people continue to look for answers they come back with

"Actually it's normal and there is no problem"

Happened with the trumpet flares that have been around since the action 4

It's happening with the over processing of video as well now

They went full GoPro

Action 6 is already registered with FCC for some reason, they removed the "pro" moniker as well

Deadcode Posted at 12-18 11:17
Everyone else can see the problem what i did reported, except the admins. They  should be more aware about how the camera works, than everyone else.

Noone talked about stabilization issues while previewing the footage, not a single commenter in this topic. Should i repeat what is our problem, should i rephrase it with simpler sentences, or is it enough if you re-read my previous posts?

Hi Deadcode. We have sent you PM. Please check!

DJI Tony Posted at 12-19 04:42
Hi Deadcode. We have sent you PM. Please check!

Im not talking for everyone here, but if its regarding the issue of the post, would be nice if dji shared with the others what they find on the subject.
It is something that bothers me with this camera, and that I have exposed here to get dji's attention, and should be addressed in a open forum setting, not by PM...

Post more videos on YouTube with catchy titles. If dji doesn't want to fix the problem, then potential buyers should be warned about it.

hgamelas Posted at 12-19 06:28
Im not talking for everyone here, but if its regarding the issue of the post, would be nice if dji shared with the others what they find on the subject.
It is something that bothers me with this camera, and that I have exposed here to get dji's attention, and should be addressed in a open forum setting, not by PM...

Unfortunetly the PM was not about solving the problem, it was just a customer satisfactory question.

I like the product but i would like DJI to fix issues. Especially if it's an easy fix like this.
But i think no engineer available due to holidays and an open ticket for weeks is bad for the statistics

Deadcode Posted at 12-19 10:12
Unfortunetly the PM was not about solving the problem, it was just a customer satisfactory question.

I like the product but i would like DJI to fix issues. Especially if it's an easy fix like this.

So happy that I found this thread!

I am seeing this issue as well. There is indeed a massive vignetting issue very visible during side to side movement. It gets further exasperated by the camera illuminating particular sections of the image while it is recording.

I spoke with the incredibly friendly and helpful DJI customer service person in Germany, and already sent him plenty of footage examples and a log file.

In my experience, manual exposure does not change the issue. Switching to Horizonsteady+ only crops further into the image, so the issue becomes less pronounced.

I find the vignette issue extremely irritating, but I could maybe edit around it if I used a second camera. But the exposure adjustments *outside* of the vignette is incredibly distracting. I don't see a way to work around that, because it happens even with the slightest movement of the camera.

Sorry to say, but an action camera that can not be moved without distracting artifacts appearing in the footage is unusable.

Deadcode Posted at 12-19 10:12
Unfortunetly the PM was not about solving the problem, it was just a customer satisfactory question.

I like the product but i would like DJI to fix issues. Especially if it's an easy fix like this.

Well, lets hope that they return from the hollydays rested and energised to solve these issues.
Meanwhile, we can all make and post videos about the issues, warning potential costumers, and further gathering dji's attention.

I also opened a ticket with DJI Support and submitted a bunch of raw log files after I was asked to re-create the problem, and like many of you, I have successfully recreated so in light conditions like before sunrise and before sunset where there is enough lighting that Super Night mode is not a good idea. For the many reasons that others have posted above, I kept my Exposure set to Auto with -0.3 EV compensation, which I would've also done for my previous GoPro Hero 9. Since my initial reporting of my issue with DJI Support, I have been keeping my ISO range at 100 - 12800, White Balance locked either at 5200 or 5600 K, and Image stuff (Texture / Noise Reduction) both set to minus 1 just so that it's not fully turned off.

And yes, I also have uploaded my very first videos on YouTube where I noticed the issue. Yes, I used their DJI Mimo app to use the Color Recovery, stamped their DJI label on it, and continued testing in fear of it being user error in my part and not having a strong photography / videography background. I was actually hoping that it was the DJI Mimo app export process, but it's not.

There are two reasons I opted for the DJI Action 5 Pro:
1) I already have the Osmo Pocket 3, and I LOVE it. But the Osmo Pocket 3 is not weather-proof.
2) I already have the GoPro Hero 9 and have had a LOT of issues with indoor low lighting. But even with the jitters, the GoPro Hero 9 did not have this annoying pulsating / vignetting effect.

I have also played with multiple frame rates upon DJI Support's suggestion. At the time I found the issue, I was recording at 4K 24 FPS, and DJI Support referenced the effect of jitters at low frame rates (but again, it's not the same jitter).
Most recently today, recorded at 4K 60 FPS on a snowy day at 9am. Exported with DJI Mimo app. It's. still. there.
I am going to try and compare what happens when I render this in Davinci Resolve using a timeline frame rate of 30 FPS. I doubt it will change, but it'll help me learn more about these frame rates on this camera, which is not the experience of an average user / consumer who wants to just press record and go.

Hello,

I received this update from DJI Support. I copy/pasted as I have received it.
IMHO, this should still not occur with any focal length...

--
"Our senior team checked all the video's details, actually, this is under normal range, and this phenomenon is caused by wide-angle distortion. The reason why the distortion produced by wide-angle lenses is more obvious during movement is mainly due to the change in perspective. When the camera or the user moves, different parts of the object move at different speeds, which causes the position of the object captured by the wide-angle lens to change in the image. Due to the characteristics of wide-angle lenses, this position change causes the distortion to be more obvious, especially at the edges of the image.

"In this case, it is recommended to test more scenarios with a "standard" view to check if the issue persists. If we misunderstood your meaning, please kindly describe more details."

vulcankat3 Posted at 12-26 04:28
Hello,

I received this update from DJI Support. I copy/pasted as I have received it.

What? Thats crazy lol!

Sorry to hear that. so basically they got back with an answer that is not right for you.  sounds like   EIS is the issue wit the 155 degree lens