exif: {"Image Make": "Canon", "Image Model": "Canon EOS 7D", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2012:06:06 22:26:30", "Image ExifOffset": "154", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "774", "Thumbnail JPEGInterchangeFormatLength": "12370", "EXIF ExposureTime": "1/160", "EXIF FNumber": "9", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "500", "EXIF SensitivityType": "Unknown", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:03:13 09:00:09", "EXIF DateTimeDigitized": "2011:03:13 09:00:09", "EXIF ShutterSpeedValue": "915241/125000", "EXIF ApertureValue": "126797/20000", "EXIF ExposureBiasValue": "-4/3", "EXIF MaxApertureValue": "4", "EXIF SubjectDistance": "61/50", "EXIF MeteringMode": "Partial", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "17", "EXIF SubSecTimeOriginal": "57", "EXIF SubSecTimeDigitized": "57", "EXIF FocalPlaneXResolution": "5184000/907", "EXIF FocalPlaneYResolution": "691200/119", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF BodySerialNumber": "2881202165", "EXIF LensSpecification": "[17, 40, 0/0, 0/0]", "EXIF LensModel": "EF17-40mm f/4L USM"}