Here is a set from Boston taken during yesterday's sunset. Some of these are cross-posted with the 100-400 image thread. The first three are the 100-400 and last is the CV 40 1.2:
This image is a significant crop of a fast flying tree swallow and yes, in-flight. The cropping ability of this camera is enough to show plenty of details still...
After studying the behavior of the swallows, I was able to capture a few of their in-flight images using the A7r IV but not in sequence only the A9 II. Plus, lady luck was on my side, too. I got only a few keepers and a lot of files ended up in the trash bin. Oh, well.
Just posted elsewhere so may as well post here too !
The Laowa 12/2.8 'Zero' Distortion lens with the Magic Convertor (you have to buy the Canon or Nikon version and the MC converts the lens into a Sony 17/4 shift lens with rotation and lockable gears). I love mine it's my second most used lens now (with and without the adapter).