Revisiting White Balance (vs. Flickr)

Started by madison_wi_gal, May 29, 2022, 10:06:09 AM

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madison_wi_gal

Weird and annoying but not huge issue.

I have a Pentax K-3 III which can utilize Multi Auto White Balance
Relevant EXIF from RAW or processed JPG file is:

WhiteBalance : Multi Auto

When I use DxO to process as JPG and upload to Flickr, it reports it as AUTO White balance.  I am told this is because Flickr only understands AUTO vs MANUAL.  That is fine.

When I use Pentax DCU to process as JPG and upload to Flickr, it reports it as MANUAL white balance.

I have run exiftool -s against both files and both still retain WhiteBalance : Multi Auto, but a diff against both files shows a lot of changes, presumably mostly due to stuff put in there by the Post processor.

I dislike mysteries.  Is there a way to determine what part of the DCU EXIF is confusing Flickr?

I do know that I have to run exiftool "-lensmodel<lenstype" to gets lenses in to Flickr due to Pentax writing lens info to Maker Notes vs. EXIF and that DCU does not write that into EXIF.  This seems different since the tag is there.

Thanks!

Hayo Baan

Can you post an example file? Both the original and the DXO altered version?
Hayo Baan – Photography
Web: www.hayobaan.nl

StarGeek

It would also be worth checking  which WhiteBalance tag is set.  There's EXIF:WhiteBalance and then the Pentax MakerNotes also has a WhiteBalance tag.  Run the command in FAQ #3 to see duplicate tags and the groups they belong to.

Flickr uses exiftool on backend and probably doesn't use the options used in FAQ #3 (Duplicates and Groups).

The reason Flickr only has Auto/Manual as options is probably because those are the only valid values for the EXIF:WhiteBalance tag.  I don't think Flickr reads the MakerNotes in the file, though I haven't tested this.
"It didn't work" isn't helpful. What was the exact command used and the output.
Read FAQ #3 and use that cmd
Please use the Code button for exiftool output

Please include your OS/Exiftool version/filetype

madison_wi_gal

Quote from: Hayo Baan on May 29, 2022, 11:21:28 AM
Can you post an example file? Both the original and the DXO altered version?

Original is too large (40 MB) but I will attach the exiftool -s data text output

DxO: https://www.flickr.com/photos/always_reboot_before_calling_it/52107248878/in/dateposted/

DxO then DCU: https://www.flickr.com/photos/always_reboot_before_calling_it/52107738180/in/dateposted/


madison_wi_gal

Quote from: StarGeek on May 29, 2022, 12:49:00 PM
It would also be worth checking  which WhiteBalance tag is set.  There's EXIF:WhiteBalance and then the Pentax MakerNotes also has a WhiteBalance tag.  Run the command in FAQ #3 to see duplicate tags and the groups they belong to.

Flickr uses exiftool on backend and probably doesn't use the options used in FAQ #3 (Duplicates and Groups).

The reason Flickr only has Auto/Manual as options is probably because those are the only valid values for the EXIF:WhiteBalance tag.  I don't think Flickr reads the MakerNotes in the file, though I haven't tested this.

Ran that command and diffed against -s itself.   I do know that MakerNotes for lenses are not read by Flickr.

madison_wi_gal

Quote from: madison_wi_gal on May 29, 2022, 01:25:10 PM
Quote from: StarGeek on May 29, 2022, 12:49:00 PM
It would also be worth checking  which WhiteBalance tag is set.  There's EXIF:WhiteBalance and then the Pentax MakerNotes also has a WhiteBalance tag.  Run the command in FAQ #3 to see duplicate tags and the groups they belong to.

Flickr uses exiftool on backend and probably doesn't use the options used in FAQ #3 (Duplicates and Groups).

The reason Flickr only has Auto/Manual as options is probably because those are the only valid values for the EXIF:WhiteBalance tag.  I don't think Flickr reads the MakerNotes in the file, though I haven't tested this.

Ran that command and diffed against -s itself.   I do know that MakerNotes for lenses are not read by Flickr.

Aha! 

I ran that command against the DxO file that reports as AUTO [Attached dxo_exif.txt]

[ExifIFD]       WhiteBalance                    : Auto

I also ran that command against the DxO --> DCU file that reports as MANUAL.  [Attached dcu_exif.txt]

[ExifIFD]       WhiteBalance                    : Manual

DCU changed it?



StarGeek

"It didn't work" isn't helpful. What was the exact command used and the output.
Read FAQ #3 and use that cmd
Please use the Code button for exiftool output

Please include your OS/Exiftool version/filetype

madison_wi_gal

OK, exiftool -WhiteBalance=Auto [the filename] fixes it.