XMP example (RDF) from unedited photo from Canon D450 (sidecar created with Lightroom)

gistfile1.xml

<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.2-c004 1.136881, 2010/06/10-18:11:35        ">
 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
  <rdf:Description rdf:about=""
    xmlns:tiff="http://ns.adobe.com/tiff/1.0/">
   <tiff:Make>Canon</tiff:Make>
   <tiff:Model>Canon EOS 450D</tiff:Model>
   <tiff:Orientation>1</tiff:Orientation>
   <tiff:ImageWidth>4272</tiff:ImageWidth>
   <tiff:ImageLength>2848</tiff:ImageLength>
  </rdf:Description>
  <rdf:Description rdf:about=""
    xmlns:exif="http://ns.adobe.com/exif/1.0/">
   <exif:ExifVersion>0221</exif:ExifVersion>
   <exif:ExposureTime>1/500</exif:ExposureTime>
   <exif:ShutterSpeedValue>8965784/1000000</exif:ShutterSpeedValue>
   <exif:FNumber>4/1</exif:FNumber>
   <exif:ApertureValue>4/1</exif:ApertureValue>
   <exif:ExposureProgram>1</exif:ExposureProgram>
   <exif:ISOSpeedRatings>
    <rdf:Seq>
     <rdf:li>1600</rdf:li>
    </rdf:Seq>
   </exif:ISOSpeedRatings>
   <exif:ExposureBiasValue>0/1</exif:ExposureBiasValue>
   <exif:MaxApertureValue>4/1</exif:MaxApertureValue>
   <exif:SubjectDistance>349/100</exif:SubjectDistance>
   <exif:MeteringMode>3</exif:MeteringMode>
   <exif:Flash rdf:parseType="Resource">
    <exif:Fired>False</exif:Fired>
    <exif:Return>0</exif:Return>
    <exif:Mode>2</exif:Mode>
    <exif:Function>False</exif:Function>
    <exif:RedEyeMode>False</exif:RedEyeMode>
   </exif:Flash>
   <exif:FocalLength>24/1</exif:FocalLength>
   <exif:CustomRendered>0</exif:CustomRendered>
   <exif:ExposureMode>1</exif:ExposureMode>
   <exif:WhiteBalance>1</exif:WhiteBalance>
   <exif:SceneCaptureType>0</exif:SceneCaptureType>
   <exif:FocalPlaneXResolution>4272000/878</exif:FocalPlaneXResolution>
   <exif:FocalPlaneYResolution>2848000/584</exif:FocalPlaneYResolution>
   <exif:FocalPlaneResolutionUnit>2</exif:FocalPlaneResolutionUnit>
   <exif:DateTimeOriginal>2011-08-18T17:17:20.02</exif:DateTimeOriginal>
   <exif:PixelXDimension>4272</exif:PixelXDimension>
   <exif:PixelYDimension>2848</exif:PixelYDimension>
  </rdf:Description>
  <rdf:Description rdf:about=""
    xmlns:aux="http://ns.adobe.com/exif/1.0/aux/">
   <aux:SerialNumber>980389980</aux:SerialNumber>
   <aux:LensInfo>18/1 55/1 0/0 0/0</aux:LensInfo>
   <aux:Lens>EF-S18-55mm f/3.5-5.6 IS</aux:Lens>
   <aux:LensID>48</aux:LensID>
   <aux:ImageNumber>0</aux:ImageNumber>
   <aux:ApproximateFocusDistance>349/100</aux:ApproximateFocusDistance>
   <aux:FlashCompensation>0/1</aux:FlashCompensation>
   <aux:Firmware>1.0.9</aux:Firmware>
  </rdf:Description>
  <rdf:Description rdf:about=""
    xmlns:xmp="http://ns.adobe.com/xap/1.0/">
   <xmp:ModifyDate>2011-08-18T17:17:20.02</xmp:ModifyDate>
   <xmp:CreateDate>2011-08-18T17:17:20.02</xmp:CreateDate>
   <xmp:MetadataDate>2011-08-18T18:12:00+03:00</xmp:MetadataDate>
  </rdf:Description>
  <rdf:Description rdf:about=""
    xmlns:photoshop="http://ns.adobe.com/photoshop/1.0/">
   <photoshop:DateCreated>2011-08-18T17:17:20.02</photoshop:DateCreated>
  </rdf:Description>
 </rdf:RDF>
</x:xmpmeta>