Sounds promising. Thanks for your updates!As a quick update, I had the camera out today a bit at a sort of local park. I drenched the camera (and the 100-400) in the falling, wet snow for about two hours with no ill effect. AF seemed really good. Subject Detection seemed to work pretty well for the birds and mammals I was playing with too. Not perfect (no camera is), but I'd tentatively say it's more or less on-par with the competition. Sometimes it did really well, sometimes it missed completely. Kind of like the R5 and a1
It was nice not to have to fuss with switching between mammals and birds as I have to with the a1, and man, that startup time is super impressive. Easily the best I've ever experienced with a mirrorless camera. Powering on is very nearly instantaneous. Lots more shooting to do, but so far, it's a solid performer.
It will also be interesting to get your impressions of the 100-400 s lens, and if you’ve tried it with a Z TC-1.4.