How to write correct lens Exif data to the DNG before importing into LR?

[Dob3rman]

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Hi all. I am trying to write lens data using Metaimage macOS app and it is not working for some reason. What is the best method/workflow/app to do that?

Thank you

[frame-it]

this thread might help you

 

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[hmzimelka]

Yeah, I used lens tagger for years and can highly recommend it.

There are some habits that need to be learnt though. If you've made edits to your files prior to changing the exif, you'll need to write EXIF to files in LR first,  then apply lens tagger changes, then read exif from files in LR.

A bit off topic; If you ever need to remove OP Codes  from DNG files, you can do this too with Lens Tagger since it's using ExifTool.

[insomnia]

I use a small ExifTool-script, before I import to Lightroom, for example if you run it from the folder where your images are stored:

exiftool -LensMake='Voigtländer' -Lens='Ultron-VM 1:2.0/28 ASPH.' -LensModel='Ultron-VM 1:2.0/28 ASPH.' *.DNG
rm *_original*
exiftool '-DateTimeOriginal>FileModifyDate' *.DNG

 

[marchyman]

On 5/24/2022 at 2:40 AM, insomnia said:

I use a small ExifTool-script

Add -overwrite_original to the exiftool command line and you won't need to remove the *_original files as a separate step.  You can also add the command to set the file modify date as part of the initial exiftool command line so you don't have to process the files twice.  I have a similar script.  It looks like this:

#! /bin/sh
#

# Update Lens information in DNG file
#

exiftool \
    -overwrite_original -m -q -q \
    -FocalLength='35 mm' \
    -Lens='ZEISS C Biogon T* 2.8/35 ZM' \
    *.DNG

[insomnia]

Thank you!