exif: {"Image Make": "Canon", "Image Model": "Canon EOS 550D", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2011:07:19 01:23:47", "Image Artist": "Dave", "Image ExifOffset": "174", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "768", "Thumbnail JPEGInterchangeFormatLength": "10445", "EXIF ExposureTime": "1/320", "EXIF FNumber": "9/5", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "400", "EXIF SensitivityType": "Unknown", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:05:04 15:22:01", "EXIF DateTimeDigitized": "2011:05:04 15:22:01", "EXIF ShutterSpeedValue": "1040241/125000", "EXIF ApertureValue": "847997/500000", "EXIF ExposureBiasValue": "2/3", "EXIF MaxApertureValue": "7/4", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "50", "EXIF SubSecTimeOriginal": "62", "EXIF SubSecTimeDigitized": "62", "EXIF FocalPlaneXResolution": "1036800/181", "EXIF FocalPlaneYResolution": "691200/119", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF BodySerialNumber": "732351269", "EXIF LensSpecification": "[50, 50, 0/0, 0/0]", "EXIF LensModel": "EF50mm f/1.8 II"}