Reader Comment: Adobe Camera Raw Mandatory Lens Corrections for Distortion/Vignetting Depends Arbitrarily on Camera Model
Related: Adobe, Adobe Camera Raw, distortion, Fujifilm, Fujifilm medium format, Glenn K, Lightroom, medium format, optics, reader comment, vignetting
re: Nikon Z8 and Nikon Z7 II and Nikon Z7
re: Adobe Camera Raw: Nikon Z8 Lens Profile Behavior Varies with Camera Settings
UPDATE 2023-06-07: I received a response from Adobe, which I am hoping I can quote here (waiting). There is a processing flow in which Adobe prioritizes rendering compatibility. Thus the new behavior is provided only for newer cameras after a certain date. Great goal, but consider: shoot with a GFX100 and GFX100S side-by-side with the same lens and one cannot process the raw files the same way! That goes beyond confusing into broken, IMO.
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Glenn K writes:
As for lens corrections, Lightroom allows me to apply chromatic and distortion corrections for both Sony and Nikon lenses. Interestingly though, even when I don't check the box, Lightroom shows an "information" blurb saying that a built-in lens profile has been applied.... but it clearly hasn't since the check boxes work!
The Nikon lens corrections in Lightroom are really screwy. I had shot the Nikkor Z 24-70 f/2.8 S in fall of 2021, and in Lightroom it shows a dedicated profile for that lens.
When I try to apply that same profile to some shots I did last week with that lens, it doesn't show profiles for any of Nikons Z lenses? I need to play with this more, but it's a mess.
DIGLLOYD: it’s easy to find it confusing, because it is.
In Glenn’s situation, the shots that allow control were taken with the Nikon Z7 II and the ones that do not were taken with the Nikon Z7 (confirmed with Glenn). This is analogous to the Fujifilm GFX100S/100 situation. It has nothing to do with the lens, only the camera that made the image.
I first ran into this issue with older Fujifilm GFX100 files where ACR won’t allow the lens profile adjustments (distortion, vignetting) to be controlled. Modify the RAW file so that the camera name is "GFX100S" instead of "GFX100" and suddenly it works. Shoot the same lens on the GFX100S and it also works.
Adobe Camera Raw Mandatory Lens Corrections: How to Bypass by Changing Camera Name
Adobe Camera Raw bug #1a: lens profiles do not allow control over distortion/vignetting
ACR disables use of distortion/vignetting control with built-in lens profiles unless the camera is a newer model. I reported the issue to Adobe over two years ago, but Adobe has not addressed it.
The cutoff is roughly April 2021. The issue appears with cameras introduced prior to that date and is not seen with cameras after that.
For example, Fujifilm GFX100S vs GFX100, Nikon Z7 II/Z8 vs Z7, Sony A7R IV/V vs III/II/I.
Proof that behavior depends on some internal table in ACR of camera names:
Adobe Camera Raw Mandatory Lens Corrections: How to Bypass by Changing Camera Name
There could be other factors besides just the camera name. It all seems to depend on some arbitrary internal Adobe data in the ACR code.
Adobe Camera Raw bug #1b: lens profiles not shown at all, built-in profile still applied
In this same vein, ACR will not even show lens profiles for any NIKKOR Z lenses.
Clicking on Nikon will show only older profiles for Nikon DSLR lenses. And is sticky and cannot be turned-off.
but no NIKKOR Z lens profiles available!
Where are Nikon NIKKOR Z lens profiles? They seemingly do not exist. Do they show up under other circumstances? Unless it’s a newer camera like the Nikon Z8, in which case one (1) profile exists, the one matching the lens.
Whereas for Sony, there is “Sony”, “Sony E”, and “Sony FE”.
