caption: A circular steel plate held on to the pit-wheel with clamps
exif: {"Image Make": "Apple", "Image Model": "iPhone 6s Plus", "Image XResolution": "600", "Image YResolution": "600", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Lightroom 6.1 (Macintosh)", "Image DateTime": "2018:02:10 14:21:56", "Image ExifOffset": "210", "EXIF ExposureTime": "1/17", "EXIF FNumber": "11/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "80", "EXIF ExifVersion": "", "EXIF DateTimeOriginal": "2017:12:04 09:35:05", "EXIF DateTimeDigitized": "2017:12:04 09:35:05", "EXIF ShutterSpeedValue": "4087463/1000000", "EXIF ApertureValue": "2275007/1000000", "EXIF BrightnessValue": "1841/862", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "83/20", "EXIF SubjectArea": "[2015, 1511, 2217, 1330]", "EXIF SubSecTimeOriginal": "225", "EXIF SubSecTimeDigitized": "225", "EXIF ColorSpace": "sRGB", "EXIF SensingMethod": "One-chip color area", "EXIF SceneType": "0", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF FocalLengthIn35mmFilm": "29", "EXIF SceneCaptureType": "Standard", "EXIF LensSpecification": "[83/20, 83/20, 11/5, 11/5]", "EXIF LensMake": "Apple", "EXIF LensModel": "iPhone 6s Plus back camera 4.15mm f/2.2"}