iPad Pro white balance

[JPizzzle]

I have read all these posts and I have two questions.
1. Why are you so concerned about a difference in white balance? To the ordinary person, it is all subjective.
2 If you are concerned about white balance for professional (or fussy personal ) reasons, then pick a device (be it a smartphone/tablet/computer) and calibrate it for white balance. it the others are not equivalent, so what, use your reference device. Personally, as much as I like an iPhone or iPad, I would use a properly calibrated computer for white balance.

I'm concerned because I noticed a pinkish tint to my screen when viewing a white background in different casual scenarios. I'm reaching out to check if there are screens that don't exhibit this or to confirm that most iPad pros have a warmer pinkish tint as in the pics I posted. I'm within a return policy, so I can exchange if needed with minimal hassle, but what's the point if this white balance is the "norm" for the pro.

 

[Atomic Walrus]

I have read all these posts and I have two questions.
1. Why are you so concerned about a difference in white balance? To the ordinary person, it is all subjective

I think it's usually actually white point variation that bothers people more than the overall white point of the screen, assuming it's within a sane range (~6400-7100K is acceptable for most people).

For example, if you have 7000K on one end of the panel and 6500K on the other than it will always look like you have a blue/green shade on one end and yellow on the other because you have the other end of the gradient to compare to. Optimal screens have ~the same temperature across the panel, but if QC only passes these screens then you'll have to throw out too many units.

From the units I've seen the variance is about normal for consumer grade IPS panels. More instances of backlight abnormalities (especially on the right side) than you see on full size monitors, which I imagine has to do with how thin the panel needs to be.

This is getting to be too much explaining, but you can also get a panel that has a visibly dominant color aside from that yellow/cyan temperature scale. If you have a panel that appears red or green that can be worse than one you'd describe as "cool" or "warm." Green is especially unappealing.

Well that is certainly better although it still looks a bit brighter in the middle, although nowhere near as much. So perhaps your iPad is a bit darker towards the edges? What do you see in reality here? In terms of colour uniformity it is towards the warmer side but I don't see any variations that scare me. Yes it is not perfect, but it is what I would call within tolerance. Is it bothering you?

By the way, I posted a screenshot of mine in the "Yellow" thread. Did you see it? It isn't perfect either.

Keep in mind when you take/look at photos that IPS has some angle effects that produce that vignette effect (brighter in center). Move the camera around and you'll see that the bright spot follows the center of the frame and not the center of the display. The angle can change this effect too. It's less visible to the human eye vs. cameras.

 

[jonstatt1]

Keep in mind when you take/look at photos that IPS has some angle effects that produce that vignette effect (brighter in center). Move the camera around and you'll see that the bright spot follows the center of the frame and not the center of the display. The angle can change this effect too. It's less visible to the human eye vs. cameras.

True indeed, but that's why I told JPizzle to take the screen with the camera further away and then crop it. This is what I did with mine, picture repeated below, and as I mentioned in another thread, I know full well its not perfect (more yellow towards the bottom). The reality is that it is less yellow overall than the picture below implies (as the camera itself introduced a slight deviation due to its own white balance). But I have seen far worse so I am not swapping it out. Overall it is warmer than the iPhone 6S Plus that I have.

 

[JPizzzle]

True indeed, but that's why I told JPizzle to take the screen with the camera further away and then crop it. This is what I did with mine, picture repeated below, and as I mentioned in another thread, I know full well its not perfect (more yellow towards the bottom). The reality is that it is less yellow overall than the picture below implies (as the camera itself introduced a slight deviation due to its own white balance). But I have seen far worse so I am not swapping it out. Overall it is warmer than the iPhone 6S Plus that I have.

Here's a more off center pic comparing it to my iPad Air. It looks like the bright spot shifted to the left to where the camera is centered, which would support walrus' explanation. Also it appears the color is uniform although not as cool blue as my iPhone.