exif: {"Image Make": "Canon", "Image Model": "Canon EOS 550D", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2011:09:24 22:01:17", "Image Artist": "fw", "Image ExifOffset": "168", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "676", "Thumbnail JPEGInterchangeFormatLength": "13187", "EXIF ExposureTime": "1/400", "EXIF FNumber": "63/10", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:09:24 15:32:05", "EXIF DateTimeDigitized": "2011:09:24 15:32:05", "EXIF ShutterSpeedValue": "540241/62500", "EXIF ApertureValue": "331919/62500", "EXIF ExposureBiasValue": "-1", "EXIF MaxApertureValue": "4", "EXIF SubjectDistance": "297/100", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "176", "EXIF SubSecTimeOriginal": "49", "EXIF SubSecTimeDigitized": "49", "EXIF FocalPlaneXResolution": "1036800/181", "EXIF FocalPlaneYResolution": "691200/119", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard"}