The a6400 and 200-600mm setup has yet to pass a thousand clicks. Still a couple hundred shy, in fact. Out with it yesterday for the first time in a while (after using the R6 for most of my outings the past couple of months) I found the setup to be intolerably sluggish and slow to acquire compared to the RF gear.
More sensibly out with the R6 and 100-400mm + RF 1.4X a little while ago, I finally encountered a bird at close enough range to see how it handles feather details. What a surprise! There are telephotos and zooms out there, some costing many multiples of the price of the 100-400mm, that aren’t as capable.
Finally, if anyone had told me ten years ago that ISO 4000 straight out of the camera could look this good, I’d have suggested a trip to the ophthalmologist. The R6 continues to amaze. Now if only I could find a few more birds like this serene little Olive-Winged Bulbul, I’d be in avian heaven!
First, the full frame; followed by a 100% crop.