Quote Originally Posted by HDNitehawk View Post
B&H hasn’t listed the lenses on pre-order yet, so I do not yet believe.
I have just lost faith......

 I am now going to wait and see how the 1D X Full Frame shakes out, and how the 2X III ISO’s look before I order one.
It was due in June wasn't it along with the 24-70 ii? MTF on Bryan's review looks very nice with 2x TC on it. Only question I have about that is the difference in the black and blue lines. I thought the black was wide open and the blue shows stopped down to f8. With the 2x on it shouldn't they be the same or does the stopped down line represent another aperture when minimum aperture is f8?

If I do take the plunge will compare it to 300 with the TCs early on and share the results. Have just been forced for too long to adapt to working around the 500 & 600 mm focal lengths that it is now an ingrained thing. The 300 with the 2x does have nice reach...