Camera follow object and then stop in place I would like the camera to follow an object. At frame 300 the camera should freeze at its current position and stop following.

I tried using Copy Location constraint (with offset) on the camera. At frame 299 is a keyframe with Influence 1 and at frame 300 is a keyframe with Influence 0. As a result, the camera jumps to its original position instead of staying in place. The same problem is with Child of constraint.

I also tried to use Transform driver for the camera with the object target. It makes a hard copy of the location (visible in Properties panel) during the animation. But I have no idea how to tell the driver to stop changing camera's location at frame 300 and leave these values as they are.
Yes, you can't animate that, stop using the constraint and keep its transforms. You can do it by hand, using the apply menu, but that is not animatable, imho.

You could do this differently: create two empties, and animate them in a way that they have the same movement until a point, where one stops and the other goes on until the end. 

Then parent the target object to the last empty, and the camera to the first.

This is how it works:



If needed you could add a tracking constraint on the camera to keep focus on the target object, even after it stops.