An ideal back swing is short and comfortable
{"Image Make": "Canon", "Image Model": "Canon DIGITAL IXUS 950 IS", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "QuickTime 7.6.2", "Image DateTime": "2010:01:08 13:58:01", "Image HostComputer": "Mac OS X 10.5.7", "Image ExifOffset": "234", "EXIF ExposureTime": "1/100", "EXIF FNumber": "8", "EXIF ISOSpeedRatings": "80", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2010:01:06 12:22:43", "EXIF DateTimeDigitized": "2010:01:06 12:22:43", "EXIF CompressedBitsPerPixel": "3", "EXIF ShutterSpeedValue": "213/32", "EXIF ApertureValue": "6", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "95/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, auto mode", "EXIF FocalLength": "29/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "375", "EXIF ExifImageLength": "500", "EXIF FocalPlaneXResolution": "43520/3", "EXIF FocalPlaneYResolution": "347645/24", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "1", "EXIF SceneCaptureType": "Standard"}