Caro Bill,
I am so sorry - I have been distracted by side-comments and did not answer your question. Here it is.
24 mp is enough with this X100F because of its digital zoom capability. 75mm 135 equivalent and I can crop when it is necessary. GR III is 28 - 50 and, again, crop is fine.
But also I think of the workflow and budget. Someone in the office says get the new Mac Pro and I say with what? Just to process a bigger jpeg when press looked fine with first Nikon digital? Anything bigger than 2.6 mp looks marvelous! I can send pictures from event to editor through my mobile. It is slower when the file is bigger, yes? After the phone, my iPad and my laptop can also handle the files (jpeg-only).
I don't carry a long zoom anymore. It is too heavy for this little old lady. My husband is loaned some new Sony RX100 model (6? 7?) and if maybe the Fuji breaks I will use that. At this moment I can use a quarter crop of the Fuji or the GR and the reach is 100 to 150mm. And still 6mp! I am not using the conversion tele on the Fuji - it takes much time and is heavy.
24 mp is much enough. The cropping is fine. For my own work... but it is not important then - I can use the 8x10 or I can use the mobile phone camera.
We cannot retire - not quite yet! We still have D3 (12mp!!!) we still have Gibellini 8x10 we still have 2000mm lens for Nikon.... but for work, small camera and 24mp I think is for everything enough.
Ciao bello,
Mme. O