Sun 06-May-12 07:18 AM | edited Sun 06-May-12 07:20 AM by nrothschild
One more point about the viewfinder issue. I don't see an FX camera in your profile so I'm assuming you have not actually shot wildlife with FX on your 500...
I have the same setup you do, and I think I shoot the same birds you do, except I use the TC17 most of the time. That minor difference is irrelevant to this point.
I have tried to use my D700 for passerine birding. The problem is not the viewfinder; it is simply the inability to crop down.
I also find the D700 far easier to manual focus than the D300.
I consider the larger view of the D700 to be an advantage, not a detriment. My biggest viewfinder problem at 700 or 850mm is losing the bird or not acquiring the bird quickly enough. I feel like sometimes I could use a "finder scope" attached to my lens, and I've actually thought about cobbling something together.
All I'm saying is that the smaller field of view of the DX viewfinder is a double edged sword, and on balance I would rather do this with an FX viewfinder. I brought up the viewfinder issue because I think it is a "market concern". But I am not convinced it is a real problem in real world use, given the various problems we wildlife photographers have. *I* would rather have the FX view.