200-400 f/4 L IS vs 100-400 vII (hypothetical)

[FunPhotons]

Great advice. Here's the thing, I can wait. Actually I prefer to wait, I am busy with my normal and wide angle and am holding off wildlife as a closer to 'retirement' (8 years away) activity to explore. So I'd rather get the ultimate later rather than a compromise now. Sometime in the next 4 years is fine.


Th 300 is an interesting idea. TCs are a bit of a pain though.

What then do you think is the ultimate? I suspect the 200-400 is.

 

[Don Haines]

and never try to hand-hold a lens that won't fit in your boot

and Neuro is right.... an apartment is a flat

Wait, wait...boot...is that the things on my feet today, to make it easier to walk through the 11" (or is that 28 cm?) of snow that's fallen so far here in Boston...or is that the large compartment in my car where I carry groceries, etc.? Because a 70-200/2.8 won't easily fit in the former, but an 800/5.6 will easily fit in the latter.

How about either? BTW, I have a pair of size 13 boots that I use in the far North that you could slip you 600 f4 into.