Why this script move the camera from side to side in between to points ?

I wanted to make my character to move/walk between two points positions but the camera is moving.

Code (csharp):

1.  
2. [LIST=1]
3. [*]privateVector3 pos1 =newVector3(-4,0,0);
4. [*]privateVector3 pos2 =newVector3(4,0,0);
5. [*]publicfloat speed =1.0f;
6. [*]voidUpdate(){
7. [*]transform.position =Vector3.Lerp(pos1, pos2,(Mathf.Sin(speed *Time.time)+1.0f)/2.0f);
8. [*]}

[/LIST]
Why the camera is moving from points to points ? transform is not the character the gameobject ?
I also tried to make Transform _transform; and then getcomponent<Transform> but still it's moving the camera not the ThirdPersonController i attached the script to.

 

Just put it on the gameObject you want to move. But it will move also all the children of your gameObject, so maybe your cam is a child of transform

 

Yes thanks.