TooManyShots wrote in post #7483346
What bokeh??? Your bokeh tends to get worst once you put a converter on it. I don't think 400 X 1.4 converter isn't much of a reach comparing 500 with a converter. Adding a 2x converter you don't necessary always get good looking shots under your less than good condition.
I never said I would keep a converter on the whole time. Having the 2.8 gives the option to have greater bokeh than 500 f4. 400 x 1.4 = 560 3.9 (f4), so there would be more reach with that than the 500 f4 without a converter. Converters don't really effect these monster primes as much as they do zooms, you wouldn't lose much quality if you were to put a 1.4x on a 400 2.8. Granted you'd have to stop down a little bit more to get the same range of sharpness you could without the converter, but thats just common sense. Personally I'd like to have the option to go fast and close, rather than limit myself to a gigantic lens and be limited by its aperture.
That said before I was confused between the DO specifications of the 400 2.8 and the 400 2.8L.
I'd much rather go with something lighter, now, either that or have a kick ass tripod to put that heavy thing on.