yeah discrete is the one that does it immediately...what id like to do is change the lens going from like 100mm to 28mm dynamically over the timeline (sorry if i wasnt clear) but when i make a keyframe and change the lens setting it changes the lens setting for the whole timeline and not just at the point. so if i start with 100mm and at the keyframe change it to 28, the lens is changed to 28 over the whole timeline, which is not what im going for...im trying for what bluetone is talking about but havent been able to achieve it...