exif: {"Image Make": "Canon", "Image Model": "Canon EOS 7D", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2011:04:11 14:47:34", "Image ExifOffset": "154", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "774", "Thumbnail JPEGInterchangeFormatLength": "12463", "EXIF ExposureTime": "1/4000", "EXIF FNumber": "4", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "250", "EXIF SensitivityType": "Unknown", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:04:09 17:26:57", "EXIF DateTimeDigitized": "2011:04:09 17:26:57", "EXIF ShutterSpeedValue": "1495723/125000", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF SubjectDistance": "53/20", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "25", "EXIF SubSecTimeOriginal": "99", "EXIF SubSecTimeDigitized": "99", "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": "770505617", "EXIF LensSpecification": "[24, 70, 0/0, 0/0]", "EXIF LensModel": "EF24-70mm f/2.8L USM"}