Dollying a camera
A free camera moves along its depth axis in the direction its lens is pointing. Unlike a target camera, its target distance remains fixed, no matter how far you dolly.
To dolly a camera:
The Dolly Camera flyout consists of the following individual buttons:
Moves only the camera to and from its target. If you go past the target, the camera flips 180 degrees and moves away from its target.
Moves only the target to and from the camera. You see no visual change in the camera viewport, unless you dolly the target to where it passes through the camera to the other side, at which point the camera view is reversed. However, changing the relative position of the target to the camera affects other adjustments, such as Orbit Camera, which uses the target as its rotational pivot.
This option is available only if the viewport’s camera is a target camera.
Moves both the target and the camera to and from the camera.
This option is available only if the viewport’s camera is a target camera.