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P: Strong Magenta cast in very raised shadows. Phase One IIQ files.

Explorer ,
Oct 31, 2024 Oct 31, 2024

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Hi, I'm giving Lightroom a try after years using Capture One. I've been doing some strong light still lives using Phase One's Extended capture, which adds 3 stops of dynamic range, blending two exposures in camera, which can give very dark files when exposing to highlights. The shadows raise fine in C1 but are turning magenta in LR. I haven't tried non extended capture files in Lightroom yet as I'm most interested in making use of the 18 stop (it is said) extended capture files. I've attached a screenshot which doesn't render the HDR the file was developed in, but shows the magenta cast which happens mostly in the corners, which is interesting, as if it were a lens cast issue... but the lens is a 90mm Rodenstock on a BSI, I think it's called, sensor which generally doesn't require a lens cast correction, but maybe a LCC would help in this case, but Lightroom doesn't offer LCC that I know of so I don't know how I would use a lens cast corrected file made in Capture one in Lightroom as the correction is in the accompanying metadata file, xmp or whatever, not in the RAW file... I sort of don't think that's what the problem is though but I'm not sure...

Bug Unresolved
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macOS

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6 Comments
Adobe Employee ,
Oct 31, 2024 Oct 31, 2024

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Please go to Help>System Info… and provide us with your software's installed version number. 


Also, are you able to share the original capture file for the Camera Raw team to review?

Rikk Flohr: Adobe Photography Org

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Explorer ,
Oct 31, 2024 Oct 31, 2024

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I have Lightroom version 8.0... The RAW file is 307MBs, too big to send here, but I'd be happy to send it to you elsewise. 

Thank you.

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Explorer ,
Oct 31, 2024 Oct 31, 2024

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More info... 

Lightroom version: 8.0 MAS arm64 [ 20241003-1027-def78b5 ] (Oct 3 2024)
NGL Version: 1.39.0.9
WF Version: 7.0 f8231de
VF Version: 1.0.150
HIL Version: 40501
CAI Version: adobe_c2pa/0.9.3 c2pa-rs/0.31.0
PH Version: 5.0

Operating system: macOS
OS Version: macOS 14.6.1 (23G93)
Application architecture: arm64
Computer model: MacBookPro18,1 / Apple M1 Pro
Logical processor count: 10
Built-in memory: 16,384.0 MB
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 2,188.0 MB (13.3%)
Peak memory used by Lightroom: 4,941.0 MB
Memory cache size: 1,547.4 MB

Internal Camera Raw version: 17.0 [ 2043 ]
Maximum thread count used by Camera Raw: 6
Camera Raw SIMD optimization: Neon
Camera Raw virtual memory: 1805MB / 8191MB (22%)

Display: 2624x1696

Graphics Processor Info: Metal: Apple M1 Pro
Graphics Processor Detail: loaded: Yes, supported: Yes, compute: Yes, init: I4_GPU4, hard: success, soft: success, al: Yes, dl: No
OS Media Capability: true

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Adobe Employee ,
Oct 31, 2024 Oct 31, 2024

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You will need to share it via Dropbox or similar and post a link. 

Rikk Flohr: Adobe Photography Org

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Explorer ,
Oct 31, 2024 Oct 31, 2024

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Adobe Employee ,
Oct 31, 2024 Oct 31, 2024

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Got it. thanks!

Rikk Flohr: Adobe Photography Org

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