“ I moved to the FF world with a D750. I must say that I do like it. The quality of the pictures is amazing, and also the ergonomic design is great. However, I also have to admit that often I don't bring it with me because of its weight and size, the last expecially. For me it's quite hard, but I'm considering selling it to buy an APS-C mirrorless camera. The sensor might not be the same, but I would probably use it a lot more, and may be this is what matter the most. „
I totally agree. I did the same (with Fuji).
“ Do you think that the quality difference is noticeable for non-professional purposes? „
No.
“ I'd like to stay with Nikon for emotional reasons, so I was thinking of the Z50II „
Good idea.
“ I prefer prime lenses to zooms, but of course some zooms may be useful when travelling. „
With Nikon D3100 and D7200 I loved the Nikon 18-140, good image quality and very convenient for travel photography. The Z version of 18-140 is great and lightweight (I regret that Fuji doesn't have a similar lens).
The Nikon Z 40 f/2 could be a useful complement to the zoom lens.