Best practices for full width browser images?

Question

What are the best practices people follow in respect to images on larger viewports? What size browser should we design for? Meaning how do we deal with high resolution monitors and what % of users have large screens? How can we best deal with the height of hero images, as we really need to decide which screen resolution to go with?

Answer 1

1920x1280 is the standard size I use because it keeps the file small and the image quality clean. Your average user computer monitor isn't lager than that.