Photo Realistic Renders

The process of making a render look as though it came from a physical camera, and the subject exists in the real world.
This involves modifying and understanding lighting, how a camera works, the material a model is made out of and all of the surface imperfections that go along with being a physical object.

One add on that can assist with this is the Lens-Sim Add on which literally simulates the glass and lens aberrations that occur when taking a photo with a physical camera