exif: {"Image Make": "Canon", "Image Model": "Canon EOS 20D", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2011:10:25 11:55:31", "Image Artist": "unknown", "Image ExifOffset": "174", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "764", "Thumbnail JPEGInterchangeFormatLength": "14004", "EXIF ExposureTime": "1/1600", "EXIF FNumber": "71/10", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "400", "EXIF SensitivityType": "Unknown", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2011:10:15 13:02:01", "EXIF DateTimeDigitized": "2011:10:15 13:02:01", "EXIF ShutterSpeedValue": "665241/62500", "EXIF ApertureValue": "2827819/500000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "139/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "17", "EXIF FocalPlaneXResolution": "233600/59", "EXIF FocalPlaneYResolution": "233600/59", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF CameraOwnerName": "unknown", "EXIF BodySerialNumber": "1821011510", "EXIF LensSpecification": "[17, 85, 0/0, 0/0]", "EXIF LensModel": "17.0-85.0 mm"}