I've found that BIF is not a problem for the T4. I'd not hesitate to use it on a dedicated BIF trip .....if I feel I can get close enough.
But if I can't I've discovered the very pixel dense (in fact the pixel density of the T4 is practically the same as my A7Riv) allows significant
cropping. Didn't need to crop much on this shot but I think it shows (well it does to me) that the T4 can AF-track an incoming object.


