LR 13.2 fails to import a TIFF that many other apps can open

[johnrellis]

LR 13.2 / Mac fails to import the attached "bad.tif" even though Photoshop, Mac Preview, Image Viewer, XnView MP, and Windows Photos open it without complaint:

The issue seems to be that EXIF:BitsPerSample = 16. Using Exiftool to change it to "16 16 16":

exiftool -exif:bitspersample="16 16 16" file

lets LR import the file. (The attached "good.tif" is "bad.tif" so modified.)

I don't know whether "bad.tif" or LR is non-compliant with the standard.

[Thomas Knoll]

What software created this bad file?

[johnrellis]

See here: https://community.adobe.com/t5/lightroom-classic-discussions/tiff-imports-in-lrc-fail/m-p/14457781#M... (waiting to be merged here).

[Rikk Flohr: Photography]

"Taken of the sun as a SER video, then created as a TIFF in autostakkert, then refined in Registrax. "

[robertr37518494]

Light room classic Newest version 2024 Mac OS Ventura 

Lightroom doesn't import files created in a Windows machine - Program is Registrax. Also, it doesn't see the thumbnail and reports the files as corrupted. Photoshop and other Mac applications (Luminar, and  Preview) open them fine. Opening in photoshop and saved as a copy is a workaround but clumsy. Tech support was unable to help. Seems like a bug in Lightroom. I think this worked in prior versions. I could drop the file but it is 40 Meg.

[GoldingD]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut out as that is just so much dead space to us non-Techs and it takes up vast amounts of scroll space making the reply less readable and less likely that others will bother with your post.

[GoldingD]

Lightroom doesn't import files created in a Windows machine - Program is Registrax. 

Are you referring to this?:

https://www.astronomie.be/registax/

and what is the file type that application creates?

and see:

https://helpx.adobe.com/lightroom-classic/help/supported-file-formats.html

[robertr37518494]

Yes, that is the program. The file type created was 16 bit TIFF. 

[johnrellis]

If the forum doesn't let you attach the file to your reply (maximum size 47 MB), please upload it to Dropbox, Google Drive, or similar and post the sharing link here.

[robertr37518494]

Here is a sample file. Taken of the sun as a SER video, then created as a TIFF in autostakkert, then refined in Registrax. The files done in Autostakkert import fine, and this file is readable in Preview. Again Lightroom Classic on the Mac newest version does not import. Thank you for your help.

[johnrellis]

I filed a bug report:

https://community.adobe.com/t5/lightroom-classic-discussions/lr-13-2-fails-to-import-a-tiff-that-man...

I don't know the TIFF standard very well, so I can't say whether it's the TIFF file or LR that isn't strictly complying with the standard.

Workarounds:

1. Open and resave the file in Photoshop. You can resave a whole batch at once, though I forget the command sequence.

2. Use the open-source Imagemagick "magick" utility:

magick original.tif new.tif

3. Use the free Exiftool utility:

exiftool -exif:bitspersample="16 16 16" original.tif

[johnrellis]

Moderators,  @Rikk Flohr: Photography, please merge with the bug report:

https://community.adobe.com/t5/lightroom-classic-discussions/lr-13-2-fails-to-import-a-tiff-that-man...

[robertr37518494]

I guess that explains the problem, what is my easiest solution Open in Luminar and then save as so I can import into Lightroom?

Is there a plan to fix the problem?

Thank you

[johnrellis]

See the list of workarounds above:

https://community.adobe.com/t5/lightroom-classic-discussions/lr-13-2-fails-to-import-a-tiff-that-man...