And its fascinating to hear you & other photographers getting good results & usability with the latest versions of Nikons TC2.
Like the latest pictures you've shared too: your 200-500mm is still locking focus well
The tc 2x III is a very good performer but the it’s the lens in front of it that takes the prize
The 300pf is an excellent lens if focuses right and no VR issues
It over-resolves z50 sensor and the fact that can work on 2x tc so well means that if we had a double Mpix sensor it would still be Fine, in the limits but OK
On the other hand 200-500 is almost in the limits on z50
200-500 is very good when the subject is near and I had no issues, almost all my shots was OK on these little birds, I was inside the car and I could go near the action
If you compare shots from 200-500 on 500mm and 300pf + 2x you may see more details on 600 but the contrast is excellent on 500
Anyway the two solutions are about equal, if you want to make a difference you must step up to 500pf +tc
I post some more little birds shots
The two in the middle is Crested Lark
