When I’m setting up camera angles for a client to approve one, I tend to make a lot of copies of my camera. When doing this with a VRayPhysicalCamera, my camera viewports rapidly become filled to unusability with the grids from the other cameras. Hiding them works, but then I can’t compare camera positions in other viewports. Is there a way to turn the grid display off?
No, currently there is no way to do that, but I will make a note for this.
Best regards,
Vlado
You probably know this but you can hide all cameras under the Display/Hide by Category options. That should work unless you need to see where your cameras are.
You obviously didn’t read the whole 1st post in this thread:)
But thanks anyway for the tip for those that didn’t know.
shift+C hides/unhides all cameras in the scene 
(shift+L - lights, shift+S - shapes, shift+G - geometry…)