Sometimes, browsing 500px or any other photo site that holds EXIF info, I see some weird shutter and ISO tagging.
Some EXIF says that the photo was taken with 80000 or 160000 ISO. Is it relevant to 800 and 1600 ISO? I've never seen ISO going above 25600. Also, some photos save shutter speed in: 2/100 or 10/1000. How is it relevant to e.g. 1/320?