iPhone 16 Pro Max sequence setting

Yes, per @FlyingFourFun do enjoy your edit.

I'm sure Apple will jump on your request, and produce some info right away.

In the meantime, you can also search Google. Here's what I found, with a simple search

https://www.apple.com/final-cut-pro/docs/Apple_ProRes.pdf

Check out page 19 and 20.

Hopefully "they should provide in the Specs" for you.

🙂

BTW: Per the slight diversion above, you can put a Global FX button on your program monitor using the + Plus Sign at the bottom-right. It gives you a visual clue when it's activated.

The new Colour (Color) Management in Premiere has been a real benefit in my current project where I have mised HDR (from  iPhone 15Pro) and normal Rec 709 clips from my Panasonic S5II

Thanks also to @FlyingFourFun for posting the link to VideoRevealed Intro to the settings on this topic. 

Very useful

The new Premiere Colour (Color) management has been a life saver importing mixed clips from iPhone 15 Pro HDR and my S5 II Rec 709.

Works a treat https://www.youtube.com/watch?v=dmPKhXDTJuE

Also; try this video for a really good baseline:

New Color Management in Adobe Premiere Pro

Fairly simple if you stick with Rec.709/SDR timeline and exports.

Display Color Management on (unless using a calibrated and profiled monitor fed through a breakout device not a GPU).

Extended Dynamic Range on also for Mac users.

Auto detect log and auto tonemapping on, sequence to Rec.709. 

Viewing gamma is a tickler unfortunately thanks to Apple 

UNLESS you are doing color work in a mostly darkened room, Viewing Gamma should be Gamma 2.2 (which is by the standard and has nothing to do with whether you send to web or broadcast).

Viewing Gamma to 2.4 if working in a semi-darkened room no matter if heading for web or broadcast.

But ... if working on a Mac, without Reference modes set to HDTV, Apple's CM utility will apply an incorrect display transform of 1.96 to video played back in QuickTime Player and Chrome and Safari.TThis lightens shadows a bit.

VLC and Potplayer will show a more correct display transform on the same computer.

So if you only care how it looks on Macs without Reference modes set to HDTV, set the viewing gamma 1.96 option. It will look the same after export in QuickTime Player and Chrome and Safari.

But too dark on that computer in VLC and Potplayer and Firefox, and on all other screens. 

You can look around also, for some other similar posts and with answers from @R Neil Haugen . I'm sure he'll want to know what kind of monitor are you displaying the video. Are you using a Mac? If so, which model?

I am not sure what exactly your end target state is, but try this, and see if it moves you closer;

When you create your sequence, or after, chance sequence settings to "rec709".  This assumes you want your final output to be in rec709 (aka youtube or any Target that doesn't support HDR playback.  This preset will change the color output space to rec709 and the working color space to rec709.   If you editing monitor both supports and is setup correct, you can leave the working color space at HDR (or a variant like HLG etc).  Adobe now will properly convert a clip to appear proper on the timeline, and output even if they are different.

I don't bother making any changes in the lumetri settings after I make that one change, its the only change I have ever needed to make to get color space to work properly (assume you are on on the latest version of PP, this didn't work on older versions).

As a side note the timeline clips apparently do not currently work with the color space, only the source and program windows will show proper color space.

These are the settings that I have when I set the timeline to Rec709:  

The preferences for color management I have are:

There might be something minor I am not reading in your original post that I am overlooking,  but I figured having an sample of what works maybe makes its possible for your confirm it matches, and then someone else can maybe add more to help you.

It would however be ideal if you can tell us what the outcome your looking for?  I assumed it was to take iphone HLG2100 clips, and edit in a rec709 workspace and output in rec709 also.    What you described, seems like you have the settings right, but the description of color shift to pink etc seems very wrong - almost like you might be using a HDR display with incorrect HDR setup, but that's a guess on my part.