An interesting observation, at least to me. 

 

I had tried the Hybrid renderer, and all of my renders would have a haze that would take over the scene and basically totally obscure what it was rendering.  So, just for kicks, I decided to try again with the latest Pose2LuxPro, and although the haze is still there, it does not take over the scene anymore.  it mostly now just looks like a faint haze in the air; although it is a blue haze.  But, I can see the render!