Render hangs when rendering with a high frame rate (400fps) and using depth of field DOF

[olika]

As the title already says i`m encountering a render problem when i try to render a scene with 400fps and having DOF turned on,
right now it seems turning off the Lens Breathing parameter does the trick!
Btw. i tend to turn off that LEns Breathing thing more and more, i.e. in a camera move when the target moves from close to the camera to further away this parameter creates strange results...

[svetlozar.draganov]

Would it be possible to send us the scene for investigation?
Let us also know what is the 3dsMax and V-Ray version that you are using.
It would be good to know if you tried to render the scene with another render engine, it might be something related to 3dsMax.

Looking forward to hearing from you.