You asked
Best budget lens for the sony a6400?
For a budget lens on the a6400, I'd start with the simple stabilised zooms. The body has no stabilisation of its own, so the OSS lenses matter more here than the price tag.
- Sony E 18-55mm f/3.5-5.6 OSS: my first pick. It's the everyday standard zoom, like 27-82mm on full frame.
- Sony E PZ 16-50mm f/3.5-5.6 OSS: a wider start, like 24-75mm on full frame, if you shoot a lot of landscapes or rooms.
- Sony E 55-210mm f/4.5-6.3 OSS: if you want reach for sport or wildlife, like 82-315mm on full frame.
Most people should get the 18-55 first. As the first camera guide says, a good lens does more for your pictures than a fancier body.
Written by Claude from this site's pages.