I missed the recent posts on this thread.
Mine (400 2.8) has been on order since it was announced. Hope to get it within the next two weeks or so.
I've always had a love-hate relationship with long lenses of this kind. Having owned the Canon 300 2.8, 500 f4, 600 f4, 400 DO MkII, I realized that they are a bit too much to carry around and for me, handholding the 500 and 600 was almost impossible unless my elbow was resting on something and then too for a very short while. However, the separation of subject from the background that can be achieved with these lenses is impossible with anything else. My 100-400GM is super sharp, not much to complain there, although honestly one can never get enough sharpness
Even with the 1.4TC it remains very usable and for the money and weight, there is nothing better around, IMHO.
However, on the recent trip to Botswana I really missed having the super teles and that for me is saying a lot. With the TC, the A9
+ 100-400 GM rig becomes f8 at 560mm and while the reach is plenty, the background is for me, too busy, esp with birds, which is really where you need the extra reach. This is one situation where cropping into APS-C mode is not helpful as the bird is small in the frame to begin with and then I always end up cropping more in post, so finally there wouldn't be much left in the file, hence the TC is the only way to go.
There were lots of beautiful birds on the Chobe river and we were on a special boat that is fixed up for photographers, with special chairs and gimbal heads that can take any camera/lens combo. The boat runs low on the water and you get a unique perspective. Kingfishers are my favorite bird, especially the little malachite fellow and I got plenty of good shots of the guy. The pictures are good but they could be better, I am sure.
I am just wondering what the 400 2.8 with the 1.4TC at f4 wide open would have done with these shots. Some of these are heavily cropped, almost 75% of the original.
All of these were taken with the A9 plus 100-400 GM plus 1.4xTC at f8 (default max aperture), variable ISO and shutter speeds.
The first one is of a pair of Little bee-eaters that were perched just behind our houseboat. Great shooting, they were very cooperative, but the background is again too busy for me. Handheld.
The second is a giant Kingfisher, again with the same combo, I have to get rid of the distracting branch at the bottom, Cropped about 50%
Third photos is a group of juvenile Yellow-billed storks from a nesting colony. Morning light.
The little Malachite with a small fish. These guys are very skittish and hardly stay in one place long enough to catch the AF, in this regard, I must say the Sony performed amazingly well. Again, a busy background although I am not sure how much better a bigger lens may have done.
Finally, a Pied Kingfisher with a catch. Taken in very harsh backlit conditions, he was on this dung ball on the ground with a lot of grass in front and behind. Had to convert to monochrome to avoid the excess amount of green everywhere. Cropped about 70%
I have many others like these where although the images are nice they are not as satisfying as they could have been. Take a look at this one of a superb starling taken over 5 yrs ago with the Canon 600MkII on my old 1DX:
I dare say the 400 2.8 even though meant for sports, will turn out to be a great lens for wildlife (with the TC), that is, until Sony comes up with the 200-600 f4/5.6
Thanks for looking.