The following table lists additional XMP properties that describe the equipment used to produce Exif data.

• Exiv2 keys are Xmp.aux.<Property>
• The schema namespace URI is http://ns.adobe.com/exif/1.0/aux/
• The preferred schema namespace prefix is aux

Reference: XMP Specification and Documentation

Property	Label	Value type	Exiv2 type	Category	Description
Lens	Lens	Text	XmpText	Internal	A description of the lens used to take the photograph. For example, "70-200 mm f/2.8-4.0".
SerialNumber	Serial Number	Text	XmpText	Internal	The serial number of the camera or camera body used to take the photograph.