Movie Render has DOF artifacts with Opacity Mask when close and focused on small objects

Yeah i saw this video, the only thing that he did was to increase the Aperture to 16, to remove the blur from the background. I am taking Macro shot, if i increse the aperture that much, the focus loses its relevance and i lose the macro feeling that i am aiming:


It is good too, but i just want to find a way to get the macro feeling, and i dont know how that much.

My Apertura was in 2.8, i little extreme, i will try to findo some balance between the possible and what i want.