Foxes are difficult to photograph, even in a captive situation, because they are so fast. It seems like they never stop moving for more than a nanosecond, and that makes critical focus tough. I photographed this red fox plowing through deep snow during my winter wildlife workshop. I chose no exposure compensation primarily because the fox dominated the center of the frame where the built-in meter -- on any metering mode -- takes most of its information. Since the fur of the fox was middle toned, no adjustment in exposure was needed even with the snowy environment. I used the combination of manual exposure mode plus auto ISO so I could control both the aperture and the shutter speed. The settings were 1/1250, f/11, and 4000 ISO.