I’ve seen the 400 f2.8 III listed as In-Stock at B&H, Adorama, and Amazon.
Have any lens reviews surfaced yet for either the 400 f2.8 III or 600 f4 III?
I’ve searched, but have yet to run across one!
A member over on FM received his 400 III back on like the 4th, posted some side-by-side comparison shots against the vII. Pretty much sticks to what we've seen with the MTF's, that the II and III are pretty much identical IQ-wise. The member says that the big story is still the weight reduction and balance point change, making the III much more manageable for hand holding.
The 600 III was supposed to also ship on the 6th, but that hasn't happened and now there's no word of when it will arrive.