@Soupy you need to make an exiv2 config file that maps the number onto the correct lens name, see: Update request: Sigma 35mm F1.4 DG HSM ART Canon Mount · Issue #1192 · Exiv2/exiv2 · GitHub
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@Soupy you need to make an exiv2 config file that maps the number onto the correct lens name, see: Update request: Sigma 35mm F1.4 DG HSM ART Canon Mount · Issue #1192 · Exiv2/exiv2 · GitHub