You asked
Best budget lens for the nikon d610?
For a budget pick on the D610, I'd start with the Nikon AF-S 50mm f/1.8G. It's a cheap, fast prime that's great for portraits and low light, and it's the lens I'd buy first.
If you want a wider lens for everyday shooting, the Nikon AF-S 35mm f/1.8G ED is a sensible step up in versatility.
If you'd rather have one zoom for everything, the Nikon AF-S 24-85mm f/3.5-4.5G ED VR covers a useful range. The VR matters here because the D610 has no stabilisation in the body.
The first camera guide explains why putting a good lens ahead of a costlier body is usually the better buy.
Written by Claude from this site's pages.