Extract most tags as numeric, except 2 tags as string?

[PaulPanter]

I want to extract

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-Model -FocalLength -FNumber -ISO -DateTimeOriginal -ImageDescription -Make -Software -Flash -ExposureProgram -MeteringMode -WhiteBalance -GPSLatitude -GPSLatitudeRef -GPSLongitude -GPSLongitudeRef -Orientation as numeric values, but

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-ExposureTime -LensID as the standard string. How can I do that and have JSON output as result? Is that possible?

[StarGeek]

Use the # version of the -n (--printConv) option to extract specific tags as their raw values
-Model -FocalLength -FNumber -ISO -ExposureTime# -LensID# ...

[PaulPanter]

Cool. Many thx. Exactly what I want. Haven't found that on a fast search in the documentation.