set focus to

[abhikaam]

is a funktion som i know from maxwell. I thinks its very smart if want a dof effekt and want to adjust the focal lenght to a point whitch has to be sharp.
In maxwell you easely click on a point in your window and the focus is set.
I would like that.

[joe_b]

set focus to

Currently the focus is set on the "target" point of the camera. You can set that in the Rhino viewport properties.

If you don't override the focal length it will then be the 3d distance between the camera and its target point.