Rendering a circular Fisheye?

[bakbek]

Hi, I'm trying to render out a circular Fisheye image... Pointing the camera up to the sky 90deg to the Horizon i want to get essentially half of a sphere i the image, but i cant understand what the fov value actually stands for in the vray fisheye camera settings. I always seem to get more the just half a sphere.

[simmsimaging]

1/2 dome would be 180 degrees, but if you can't get that you might just render a 360 and fill the bottom of the shot with black (or whatever) in Photoshop.

[jacksc02]

I have had issues with rendering 180degrees in the past and have ended up using a value of 179.999