Studio Display XDR - Blooming issue

[Mbloom]

Currently using a Studio Display XDR with a MacBook M3 Max running Tahoe 26.3.1.

I'm not sure if this is even blooming, but it looks like very noticeable blooming/dimming. This is at 50% brightness, and it only seems to disappear at 100% brightness.

It only seems to happen when using the standard Apple XDR Display (P3 – 2000 nits) color profile. When using something like the HDTV video color profile, I’m not experiencing this issue.

The first day I had this monitor I was running an older version of Tahoe and was able to manually switch off HDR, which I did, and I did not experience this issue. Now it seems like HDR is always enabled.

So I’m thinking this might have something to do with HDR always being enabled at least that’s what I’m hoping, and not a defective panel.

Did anyone else experience this issue?

https://imgur.com/a/z0biAK0

 

[jabbr]

The dimming zones are much larger than the MBP so I wouldn't be surprised if the blooming is more noticeable. Still pretty weird to see it on mid grey like that, though. Maybe they got some more tweaking to do with the dimming algorithm + bugs.

 

[turbineseaplane]

I'm not sure if this is even blooming, but it looks like very noticeable blooming/dimming. This is at 50% brightness, and it only seems to disappear at 100% brightness.

(OLED has entered the chat)

Yep.. Nothing touches per pixel lighting.

 

[CalMin]

Here's the thing. If you're noticing it now, then it's going to bug you. These displays are too expensive to not be anything less than 110% delighted with them.

Unless you really need the 120hz, or expanded brightness color profile, you're probably better off with a regular ASD because if it bugs you today, it will always bug you. But you won't always be in the return window...

 

[jabbr]

question is, what bugs you more... some blooming or bad contrast ratio?