Set blur and focus on a waypoint

Depth of field belongs to a waypoint, not to a track, so you set it while you are framing the shot.

In the menus: ESC → Design → Camera → PLACE WAYPOINTS IN WORLD

Setting the three dials

Press TAB to reach Blur, Focus or Fore in the parameter strip, turn the WHEEL, and stamp the waypoint with MOUSE1.

All three preview live while you stand there. Set up a camera track covers the rest of that mode.

Two of the three have an "off" that is not zero.

DialRangeWhat its bottom notch means
Blur0 to 30how soft the background goes. 0 is a real setting: sharp here, which is how you author the start of a ramp
Focus0 to 8000 unitsthe distance the shot is sharp at. Reads auto, meaning follow focus, not "no focus"
Fore0 to 30how soft anything close to the lens goes. Reads off, and its neutral is 20, which is what an untouched waypoint carries

A capture writes all five dials at once, so re-stamping a shot with a dial back at zero clears what that slot had.

Pulling focus across a shot

Blur and Fore interpolate along the leg. Set Blur 0 on waypoint 1 and 20 on waypoint 3 and the shot goes soft over that span.

Focus interpolates too when the track contains a fixed focus distance.

Prefer the console?

/camera dof is the only way to retune a waypoint without going back out into the world. It always names its track.

/camera list reads the values back per waypoint. Blur and focus appear only above zero, and the foreground only off its neutral. A clean line therefore means the lens values are at their defaults. It cannot tell an untouched waypoint from one deliberately stamped with Blur 0 as a sharp endpoint.