I just now see some remarks about this lens, as not their cop of tea.
Maybe we should get some more information regarding the downside of the this f4 lens.
I have been happy with mine, easy to travel with at take pretty sharp images.
Just added one to show, also the out of focus areas.
My great grand son.
Nice capture of your grandson! Great environmental portrait showing the sharpness and fine optical properties of the 24-70 f/4 S
Why the 24-70 f/4 S is not on my inventory,,, Well for my use cases it just doesn't tick all the boxes
I prefer lenses with no or very limited geometrical distortion - and if there is distortion that it is an 'uncomplicated' distortion, I have seen the image degradation from removing this distortion in post processing and the in camera firmware processing and I don't like it.
The leica Q, Q2 fixed lens as well as the Leica SL with the zooms are examples of such in camera firmware distortion removal. Looks fine for most images agreed! However for Architectural images as well as nature images with for instance the horizon at the image top or bottom, it's sometimes ruins the IQ image possibilities.
For stitching panoramas this shows up as well - Yes first when you push the files,,, I push my files,,,
That's why I use zooms with little or no geometrical distortion at most focal lengths;14-24mm AFS 2.8 - 24-70mm E AFS 2.8 - 80-200mm AFS 2.8
Fixed lenses are usually easier to find witch are without strange geometrical distortions,,,28mm E 1.4 AFS
These fit the bill regarding distortion but also has enough sharpness to not be a compromise
Last point; I dislike the extending design - I try to avoid them as a mechanical engineer I shake my head when I grab the front of the lens and i wobbles from side to side,,, All this talk about IQ and precision ground elements and tolerances,,, and the whole lens assembly shifts around