Since not all of my lenses are identified correctly by Lightroom, I'd like to add the information to the ImageIngester-IPTC.xmp template before conversion to DNG. I use the following xmp:
<rdf:Description rdf:about="" xmlns:aux="http://ns.adobe.com/exif/1.0/aux/">
After ImageIngester has created the XMP for the image, the "aux" namespace has disappeared, which renders the XMP invalid:
<aux:Lens>Sigma 300mm F4 APO Macro</aux:Lens>
Has any else come across this, or have any suggestions on how to solve this problem?