Dear Fujifilm: it's time to launch the 'Fujinger'

I'm happy to use (and am already using) what's available, my point via my slightly-tongue-in-cheek original post is I think Fujifilm's strategy here seems quite opaque, at least to me.

Launching a very capable focus-tracking pro camera but without an eco-system of fast tele lenses even announced makes me think either:

1. Fujifilm don't want to gain market share in the pro-sports market or think the RoI is too long, or too uncertain (probably quite a small market, relative to point 3, but with deep pockets)
2. Fujifilm have some things up their sleeves as yet unannounced, and are possibly waiting to judge reaction to the new camera before committing.
3. Fujifilm want to concentrate on the wildlife/enthusiast market because that's where they see the better RoI (probably quite a big market, relative to point 1).

Don't get me wrong, the new 150-600 by all accounts is a fine lens and has some significant size and weight advantages over fast primes and faster zooms. It is also quite competitively priced IMHO.

Internal focusing is a benefit too for those of use who use gimbal heads, my Sigma 150-600 is a nightmare to keep balanced through the zoom range (but then it's mostly set to 600). Even handheld, it's tricky to hold as the weight shifts, but then it's a FF lens.

f/8 doesn't matter so much when, to a certain extent, the wildlife shooter can position themselves to manage the background and the distance to it, if necessary. BIF shooters won't have much of a problem. Of course, for small birds, it doesn't matter much either as DoF is so shallow at close distance, you'll likely be stopping down for more DoF anyway.

But, to my original post's point, if your challenge is trying to isolate a player 10m away against a brightly-coloured advertising panel, the 150-600 is probably not the right tool.