Real depth of field in blender, without post processing Last time I checked, blender could only render depth of field effects in a post process pass, using the "Defocus Node", which seemed to get it quite wrong.

Is there now a way to include rays across a lens during tracing and produce a more realistic depth of field?
With the Cycles Renderer, DoF is supported natively. Select the camera, switch to the Camera properties panel, and set up DoF.