iPhone 12 Pro Does your iPhone 12 video have shifting exposure / flickering?

[Rockadile]

I'm planning a vacation soon so I bought a gimbal to get ready. I have iPhone 12 Pro.
Did some test videos and noticed exposure shifting all throughout the frame.

I initially thought this was because of the 10-bit HDR setting so I turned it off but the shifting still happens.
It's like watching Smart HDR at work but the output video not getting blended.

This video shows the same problem I have:

 

[Vangeli]

At first it looks like something to do with the lens and stabilization, I’ve seen similar issues when making sudden movements on other phones but the 12 Pro Max has a larger sensor/lens that may be contributing.

But watching the video again there’s definitely something more going on.

 

[hyelton]

For the studdering did you have auto FPS disabled? That was causing that issue for me dropping my Framerate down to 30fps despite having it set to 4K60.

But yeah my 12 Pro max has the exposure issue. And the issue where it looks like the focus goes crazy making it look like I’m shaking the phone when I’m clearly not

 

[Rockadile]

For the studdering did you have auto FPS disabled? That was causing that issue for me dropping my Framerate down to 30fps despite having it set to 4K60.

But yeah my 12 Pro max has the exposure issue. And the issue where it looks like the focus goes crazy making it look like I’m shaking the phone when I’m clearly not

The youtube video was made by someone else but he shows the same exposure shift issue I have.
I haven't tested for the stuttering but I'll keep that tip in mind, thanks.

Don't have firsthand experience with your crazy focus issue. Do you have an example? You could hold your finger on the screen to have it lock exposure & focus.

 

[secretk]

I can confirm my iPhone 12 Pro does that. I cannot solve the problem but from what I have seen in youtube as tips and tricks, you can lock the expose when recording. This should remove the expose shifting. I would like the phone to do it on its own, but it seems it cannot and would constantly reevaluate the exposure unless I lock it.

 

[hyelton]

The youtube video was made by someone else but he shows the same exposure shift issue I have.
I haven't tested for the stuttering but I'll keep that tip in mind, thanks.

Don't have firsthand experience with your crazy focus issue. Do you have an example? You could hold your finger on the screen to have it lock exposure & focus.

https://imgur.com/a/wbIfiEy

Here’s a short video clip. Look at the shaking. And sometimes it can do it for 30seconds. It’s highly annoying.

It’s most noticeable when trying to take a photo or video of the phone screen of my oneplus 8T it just can’t do it

 

[now i see it]

The constant changing of exposure in a panning video is just auto exposure doing its thing. All smartphones do it

 

[Rockadile]

I can confirm my iPhone 12 Pro does that. I cannot solve the problem but from what I have seen in youtube as tips and tricks, you can lock the expose when recording. This should remove the expose shifting. I would like the phone to do it on its own, but it seems it cannot and would constantly reevaluate the exposure unless I lock it.

You are talking about holding your finger on the screen until exposure & focus lock (AE/AF lock), right? I tried that and it didn't fix it for me.

Here’s a short video clip. Look at the shaking. And sometimes it can do it for 30seconds. It’s highly annoying.

It’s most noticeable when trying to take a photo or video of the phone screen of my oneplus 8T it just can’t do it

Does it only happen during close focus? Just on a certain lens?
This is the only video I could find that is similar to yours:

The constant changing of exposure in a panning video is just auto exposure doing its thing. All smartphones do it

Do you mean the global exposure or parts of the video? I would understand if it was global exposure but this is more like watching HDR blending at work. Final output should not be showing blending.

 

[hyelton]

You are talking about holding your finger on the screen until exposure & focus lock (AE/AF lock), right? I tried that and it didn't fix it for me.



Does it only happen during close focus? Only on a certain lens?
This is the only video I could find that is similar to yours:

Do you mean the global exposure or parts of the video? I would understand if it was global exposure but this is more like watching HDR blending at work. Final output should not be showing blending.

Yep that’s exactly the issue mine does! Does it with every lens.

 

[Rockadile]

Yep that’s exactly the issue mine does! Does it with every lens.

I think that is the sensor or lens stabilization twitching out of control. I'm leaning towards it being a hardware defect. You should have that checked out by Apple if you haven't already.

 

[hyelton]

I think that is the sensor or lens stabilization twitching out of control. I'm leaning towards it being a hardware defect. You should have that checked out by Apple if you haven't already.

Not easy when I have to send them the phone via mail. Don’t have any apple stores near nor the time to drive 2 hours round trip lol. I think it’s happening to a lot more. My local T-Mobile store demo unit does the same thing

 

[Rockadile]

Not easy when I have to send them the phone via mail. Don’t have any apple stores near nor the time to drive 2 hours round trip lol. I think it’s happening to a lot more. My local T-Mobile store demo unit does the same thing

Did you tell them about their demo unit? If so, what did they say?

 

[zakarhino]

The "flickering" has been an issue since day 1. Looks like it hasn't been fixed fully.

 

[Vangeli]

Has this been fixed with iOS 14.6? I just tried it out in a few different lighting conditions and I’m not seeing it anymore.

 

[Rockadile]

Has this been fixed with iOS 14.6? I just tried it out in a few different lighting conditions and I’m not seeing it anymore.

I'm still seeing it on 14.6 but it's a solid improvement. 50-70% less noticeable on 0.5x and 1x lens. 2x is still subpar.