I know It's not on the list, but I would HIGHLY RECOMEND the 600mm f/4. The general rule in wildlife photography is too get the longest lens you can afford. Unless it is out your budget I would get that lens.


I have a cheapo 500mm f/8 and Minolta 600mm f/6.3 and the differance is quite signifant in terms of reach. You can get away without using a tele-extender more often with the longer lens.


Something to think about,


John.