UltraHD Iray HDRI With DOF - The lake

Most Iray HDRI environment sets don't allow depth of field use easily and directly out of the box.

UltraHD Iray HDRI With DOF - The lake does!

You won't have to tweak anything as all the presets are there for you to just click and render.

With UltraHD Iray HDRI With DOF - The lake, you'll get 1 ultra HD (up to 16K) custom-made environment with or without the depth of field presets. This environment is the banks of a lake in the south -west of France, where fishermen and walkers can easily relax enjoying the sun and the landscape.

https://www.daz3d.com/ultrahd-iray-hdri-with-dof--the-lake