Let me start out by saying that I practically never use AutoISO on any of my cameras. So, this question may be totally uninformed. Because I'm planning a trip to a number of National Parks and hope to shoot wildlife, I acquired the Panasonic 100-300 lens to give me some decent reach. As I approach 300mm, it becomes more important to maintain a fast shutter speed in order to get a sharp image. I usually shoot at ISO 200, but recognize that I'll need to raise the ISO to maintain the required shutter speed, as my focal length increases. Rather than constantly changing the ISO manually, I'd like to use AutoISO to have the ISO change when needed (ie - when the shutter speed drops below a certain threshold like, say, 1/300 sec). Is it possible to set the E-M5 to do that? In the menus, I see that Gears > E > ISO-AutoSet allows you to set the High Limit of the ISO and the Default ISO. But I don't see any way to set a threshold for shutter speed. (My Nikon D300 allows me to do that, but I don't see it on the E-M5). Am I missing something? Thanks!