I find it odd that we seem to want everything neatly wrapped into an ' ist , ' ism , ' ocracy , etcwhen the world is far too complex for such convenience . We all dupe ourselves to satisfy a silly need to fit in to something definitive and identifiable . <| sep |> I ' d wait until Christmas . <| sep |> Looks at the comments OH JEEZUS <| sep |> too smooth to be man made ? ?<| sep |> For wildlife photography or sports heck even my dogs sometimes , I grab my 100400 f 5 . 6 , it is my best lens by faaaar . My secondary is the 100 mm macro , I use it the other 15 % of the time but for portraiture or when I don ' t need to worry about distance and want the lower aperture . Both of these lenses are beasts , especially the 100400 , but you ' ll have to pay a pretty penny for it for image quality , I couldn ' t ask for better