You asked
Is the zeiss loxia 85mm f 2 4 hard to focus manually?
The site doesn't say how hard the Zeiss Loxia 85mm f/2.4 is to focus by hand. What it does say is that this is a manual-focus lens with no autofocus, so you'll be doing all the focusing yourself. It's made for full frame, and on Sony E it fits everything from the a7 series up, plus the APS-C models, where it frames like about 128mm.
If you're weighing it for portraits, the portraits page explains why an 85mm suits people: flattering perspective, soft backgrounds and a comfortable working distance. Full details are on the Zeiss Loxia 85mm f/2.4 page.
Written by Claude from this site's pages.