How do I get real Hollywood-style depth blur (bokeh) in ComfyUI — no prompts, just nodes or AI models?

I want to add cinematic depth-of-field blur to existing images in ComfyUI the way a real camera lens does it. I am avoiding prompts and new generations. Look to take my current images and keep sharp subject, but with blurred background with natural bokeh falloff but without touching the prompt or rerunning diffusion. Just post-processing an already-generated (or real) image. How do you do it? submitted by /u/DigitalDreamRealms [link] [comments]