caption: College students listening to a university lecture
exif: {"Image ImageWidth": "4992", "Image ImageLength": "3328", "Image BitsPerSample": "[16, 16, 16]", "Image Compression": "Uncompressed", "Image PhotometricInterpretation": "2", "Image Make": "Canon", "Image Model": "Canon EOS-1Ds Mark II", "Image Orientation": "Horizontal (normal)", "Image SamplesPerPixel": "3", "Image XResolution": "72", "Image YResolution": "72", "Image PlanarConfiguration": "1", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CC 2015 (Windows)", "Image DateTime": "2016:09:28 18:05:26", "Image Artist": "Monkey Business Images", "Image ExifOffset": "348", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "850", "Thumbnail JPEGInterchangeFormatLength": "6636", "EXIF ExposureTime": "1/40", "EXIF FNumber": "8", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "400", "EXIF ExifVersion": "", "EXIF DateTimeOriginal": "2007:07:18 11:02:01", "EXIF DateTimeDigitized": "2007:07:18 11:02:01", "EXIF ShutterSpeedValue": "665241/125000", "EXIF ApertureValue": "6", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "105", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "800", "EXIF ExifImageLength": "533", "EXIF FocalPlaneXResolution": "250400/71", "EXIF FocalPlaneYResolution": "666800/189", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Manual", "EXIF SceneCaptureType": "Standard"}