I use a Canon 7D and did not use filters or even much editing. This one was difficult because these birds are mainly nocturnal and come out during the day only when they are really hungry. So they keep their eyes closed and essentially invisible much of the time, so all you see is a white lump. Getting a focus to make the face pop out, either with manual or auto focus was really tough. But lots of shots and the good auto focus system on the 7D finally got me a few good ones. Thanks for your interest in my image!