exif: {"Image Make": "Canon", "Image Model": "Canon EOS 7D", "Image XResolution": "240", "Image YResolution": "240", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Lightroom 3.6 (Windows)", "Image DateTime": "2015:04:27 15:03:45", "Image Artist": "Da Xu", "Image Copyright": "Da Xu", "Image ExifOffset": "242", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "838", "Thumbnail JPEGInterchangeFormatLength": "11565", "EXIF ExposureTime": "1/1000", "EXIF FNumber": "14", "EXIF ExposureProgram": "Shutter Priority", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2015:04:25 09:00:52", "EXIF DateTimeDigitized": "2015:04:25 09:00:52", "EXIF ShutterSpeedValue": "1245723/125000", "EXIF ApertureValue": "761471/100000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "41/8", "EXIF SubjectDistance": "87/2", "EXIF MeteringMode": "Partial", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "247", "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": "270102043", "EXIF LensSpecification": "[150, 500, 0/0, 0/0]", "EXIF LensModel": "150-500mm"}