Here's the final messy circuit, just before I recreate it on a PCB using a hard disk ribbon cable to keep things neater
{"Image ImageDescription": "\"--\"", "Image Make": "\"Canon\"", "Image Model": "\"Canon EOS DIGITAL REBEL\"", "Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "\"Capture One 4 Windows\"", "Image IPTC/NAA": "[28, 1, 90, 0, 3, 27, 37, 71, 28, 1, 0, 0, 2, 0, 4, 28, 2, 0, 0, 2, ... ]", "Image ExifOffset": "310", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail JPEGInterchangeFormat": "702", "Thumbnail JPEGInterchangeFormatLength": "3346", "EXIF XResolution": "300", "EXIF YResolution": "300", "EXIF ResolutionUnit": "Pixels/Inch", "EXIF ExposureTime": "1/60", "EXIF FNumber": "4", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "100", "EXIF ExifVersion": "0220", "EXIF ShutterSpeedValue": "189/32", "EXIF ApertureValue": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "95/32", "EXIF SubjectDistance": "41/100", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash fired", "EXIF FocalLength": "52", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2048", "EXIF ExifImageLength": "3072", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF ExposureMode": "Auto Exposure"}