The lens you really used, in every photo.
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Email supportWhy does my camera record the wrong lens?
Manual and many third-party lenses can't tell the camera what they are. So the camera records a guess, the lens profile you selected in its menu, or nothing at all. Lens Labeler writes the lens you really used.
Does Lens Labeler change my original photos?
No. It writes a corrected copy and never touches the original. Only the lens fields change (plus film details, if you add them); the image data is checked byte for byte after every write.
Which files are supported?
DNG, TIFF and JPEG. A DNG stays a DNG, a TIFF a TIFF, a JPEG a JPEG; nothing is converted or re-encoded. Other RAW formats (like CR3, NEF or ARW) and HEIC aren't supported.
Where do the corrected copies go?
Wherever you save them: Photos, or a folder you pick in Files. Copies are named like the original with “Lens Labeler” added, for example L1000123 Lens Labeler.DNG. You can save the same batch to both.
How many photos can I do at once?
Up to 100 per batch. Photos are grouped by the lens name the camera recorded, so you set the real lens once per group. For a bigger folder, save and clear the batch, then add the folder again: Lens Labeler continues with the photos it hasn't done yet.
My lens isn't in the catalog.
Type it in: brand, model, focal length and maximum aperture. Turn on “Always use for this lens name” and it's filled in automatically next time. You can edit or delete saved lenses under Lenses.
Lightroom still shows the old lens.
Import the corrected copy, not the original. Lightroom also keeps its own lens profile setting: pick the profile under Lens Corrections, and use Setup › Save New Lens Profile Defaults so it's applied automatically to that lens from now on. Lens Labeler doesn't change Lightroom's settings.
How do I tag a film scan?
Turn on Film scan, then add the camera, the film stock and its ISO (or pick from the film list), and the date it was shot if you know it. Without a date, the scan date is kept. Save the setup as a preset to reuse it on the next roll.
The ISO still shows the scanner's value.
Make sure you're looking at the corrected copy. Lens Labeler writes the film ISO to every ISO field the file has, including the ones mirrorless cameras use.
What are the Strip, Re-sign and Leave options?
They only apply to photos that already have Content Credentials, for example from a Leica M11-P. Strip removes them from the copy. Re-sign signs the copy on your iPhone and keeps the camera's original signature in its history. Leave keeps the camera's credentials on the copy, but they will no longer verify, because the file has changed. Lens Labeler never adds credentials to photos that don't have them.
A verification site says the issuer isn't recognized.
That's expected. The signing certificate is created on your iPhone rather than bought from a public certificate authority, so verification sites don't recognize the issuer. The signature is still valid, and the camera's original signature stays in the history.
Adding photos from iCloud takes a long time.
Files that are only in iCloud have to download first; a big RAW batch can be several gigabytes, so the time depends on your connection. The progress card says when it's downloading. You can cancel anytime, and the photos already added stay. Tip: in Files, choose Download Now on the folder before adding it.
Why does Lens Labeler ask for access to Photos?
“Add to Photos” lets it save your copies; it can't see your library with that. Full or limited access is only needed when the picker can't hand over an original file, like a RAW+JPEG pair or a photo stored in iCloud Photos. Files and folders need no permission. See the privacy policy.