You asked
Is the sony fe 50mm f 2 5 g weather sealed?
I can't confirm that. The spec list on the Sony FE 50mm f/2.5 G page covers the mount, focal length, aperture, stabilisation and autofocus, but it doesn't mention weather sealing either way. So I won't guess.
If you need it for rain, spray or dusty conditions, check the manufacturer's listing before you rely on it. Weather sealing matters most when you're out in wind and drizzle, as I explain on the Landscape page. For travel it's a nice-to-have, covered on the Travel page.
Written by Claude from this site's pages.