I would say that's normal my ultra has 200mp 50mp and 12mp and the zoom only works on 12, it does work on 50mp in expert raw mode but I don't think the a54 has that
Sorry, just checked my camera again and if it is set to 3:4 50MP no zoom, but 3:4 has the zoom options. I think they use pixel binning for the main camera unless you choose the full 50mp option.
Badger, this is so helpful. Thank you, although not the answer I wanted. My previous A50 has a 25mgp main camera AND it zooms. Quality very good. I am therfore worried that zoomed photos on the 12mgp may nit be so good. How do you find it?