exif: {"Image Make": "Canon", "Image Model": "Canon EOS 50D", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Picasa", "Image DateTime": "2011:08:20 16:45:38", "Image ExifOffset": "174", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "920", "Thumbnail JPEGInterchangeFormatLength": "4453", "EXIF ExposureTime": "1/400", "EXIF FNumber": "71/10", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "640", "EXIF SensitivityType": "Unknown", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:08:15 10:45:48", "EXIF DateTimeDigitized": "2011:08:15 10:45:48", "EXIF ShutterSpeedValue": "540241/62500", "EXIF ApertureValue": "2827819/500000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "5", "EXIF SubjectDistance": "553/100", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire", "EXIF FocalLength": "250", "EXIF SubSecTimeOriginal": "87", "EXIF SubSecTimeDigitized": "87", "EXIF ExifImageWidth": "2292", "EXIF ExifImageLength": "1529", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "Interoperability RelatedImageWidth": "4752", "Interoperability RelatedImageLength": "3168", "EXIF InteroperabilityOffset": "784", "EXIF FocalPlaneXResolution": "792000/149", "EXIF FocalPlaneYResolution": "1056000/199", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF ImageUniqueID": "15566c7b7c336b939ffa5558da925046", "EXIF BodySerialNumber": "2120703684", "EXIF LensSpecification": "[55, 250, 0/0, 0/0]", "EXIF LensModel": "EF-S55-250mm f/4-5.6 IS"}