RT and lens data EXIF in Info.

Software RawTherapee
3

RawTherapee’s lens info derives from ExifTool, and ExifTool shows the same:

$ exiftool -G0 DSC00074-1.jpg | grep -ai lens
[EXIF]          Lens Make                       : Nikon
[EXIF]          Lens Model                      : Series E 100mm 1:2.8
[MakerNotes]    Lens Format                     : Unknown
[MakerNotes]    Lens Mount                      : Unknown
[MakerNotes]    Lens Zoom Position              : 0%
[MakerNotes]    Lens Type                       : E-Mount, T-Mount, Other Lens or no lens
[XMP]           Lens                            : Series E 100mm 1:2.8
[Composite]     Lens ID                         : Sony FE 100mm F2.8 STF GM OSS or Sony FE 70-200mm F2.8 GM OSS or Sony FE 70-200mm F2.8 GM OSS + 1.4X Teleconverter or Sony FE 70-200mm F2.8 GM OSS + 2X Teleconverter or Sigma 70-200mm F2.8 DG OS HSM | S

To understand why you see an array of possible lenses, you would need to look into ExifTool.

There is a branch of RawTherapee metadata-exiv2 which uses Exiv2, and that shows only your manually-edited lens.

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