0 files updated using DefaultScale

[jimbo]

Hello! Using an anamorphic adaptor from Moondog on my iPhone 11, would love to process them in LR without needing to desqueeze them somewhere else. Tried the ol: exiftool -DefaultScale="4.0 3.0" * in the directory with the images, and I got:

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    0 image files updated
1124 image files unchanged

So:

1) Your system type: Mac 10.15.7

2) The ExifTool version you are using (the output of the "exiftool -ver" command): 12.00

3) The specific command line you are using (or a sample script if having problems with the API):

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exiftool -DefaultScale="4.0 3.0" *
exiftool -DefaultScale="4.0 3.0" "RAW_20201218_100822[1].dng"
exiftool -DefaultScale="4.0 3.0" RAW_20201218_100822_1.dng

The last one I changed the name of the image thinking the brackets were going to be a problem, no change

4) The console output from the command.

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    0 image files updated
1124 image files unchanged


Some more things I tried:

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exiftool -DefaultScale="4.0 3.0" "RAW_20201218_100822[1].dng" -v2
Writing SubIFD:DefaultScale
======== RAW_20201218_100822[1].dng
Rewriting RAW_20201218_100822[1].dng...
  Editing tags in: IFD0 SubIFD TIFF
  Creating tags in: IFD0 SubIFD TIFF
  FileType = DNG
  FileTypeExtension = DNG
  MIMEType = image/x-adobe-dng
  Rewriting IFD0
  Rewriting XMP
  Rewriting ExifIFD
  Rewriting MakerNoteApple
  Copying 64 image data blocks
Nothing changed in RAW_20201218_100822[1].dng
    0 image files updated
    1 image files unchanged

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exiftool -a -s -validate -warning "RAW_20201218_100822[1].dng"
Validate                        : 2 Warnings (1 minor)
Warning                         : Non-standard format (undef) for IFD0 0x02bc ApplicationNotes
Warning                         : [minor] Undefined value for IFD0:NoiseReductionApplied


I tried with sudo. I had got this to work with photos from this same phone taken with a pervious version of iOS, and a previous OS (10.14) but no dice here. (I just pulled the command out of a history file)

When I run % exiftool -G1 -a "RAW_20201218_100822[1].dng" | grep DefaultScale I get zero rows (I scoured the output to make sure).

I'm sure I'm doing something very dumb here.

[StarGeek]

Odds are it's the same as this problem.  By default, exiftool would write it to the SubIFD but if your files don't have that, it won't be written.

[jimbo]

Oh cool! glad to hear I'm not the only one. My searching foo was weak on this one.

Couple of questions that didn't seem to be answered in the other thread:

Is there a way to ask exiftool to _add_ the SubIFD?
Phil Harvey suggests to put it somewhere else, where would be a good place? Is there an example command for that?

[Phil Harvey]

Is there a way to ask exiftool to _add_ the SubIFD?

No.

Phil Harvey suggests to put it somewhere else, where would be a good place? Is there an example command for that?

It should go in the IFD of the image that it refers to.

- Phil

Edit: Fixed typo

[jimbo]

Thank you so much! I figured it out:

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exiftool -IFD0:DefaultScale="1.333 1.0" "RAW_20201218_100822[1].dng" -v2
Writing IFD0:DefaultScale
======== RAW_20201218_100822[1].dng
Rewriting RAW_20201218_100822[1].dng...
  Editing tags in: IFD0 TIFF
  Creating tags in: IFD0 TIFF
  FileType = DNG
  FileTypeExtension = DNG
  MIMEType = image/x-adobe-dng
  Rewriting IFD0
  Rewriting XMP
  Rewriting ExifIFD
  Rewriting MakerNoteApple
    + IFD0:DefaultScale = '1.333 1.0'
  Copying 64 image data blocks
    1 image files updated


Couldn't have done it without y'alls help. I appreciate it!