How to move Vector 3 camera without moving the character in first person

[cheshnut (ruby)]

local function OnRenderStep(Input)
	Camera.CFrame = Camera.CFrame * CFrame.Angles(0, 0, if Input == "Q" then math.pi / 20 elseif Input == "E" then -math.pi / 20 else 0) + Vector3.new(if Input=="Q" then math.pi/2 elseif Input=="E" then math.pi/2 else 0,0,0) 
end

I have here a part of my code for the tilting script. But the vector 3 moves my character and camera but I just want it to move my camera (In this case my character goes backwards when i press either q or e because of the vector 3). How can i do this? Sorry if am bad at explaining but I am sure you guys can understand. Thanks

[ThanksRoBama (Emma)]

Please explain what is meant to happen. It looks like the camera is meant to roll when the player inputs to roll left or right, but why add the Vector3?

[cheshnut (ruby)]

Well, It is a peek system. Kind of like PUBG peek system. I used Vector3 because that’s the only function I know to move the camera without the character also moving when in first person. But I have found a way by using the CameraOffset inside Humanoid

local function OnRenderStep(Input)	
	Camera.CFrame = Camera.CFrame * CFrame.Angles(0, 0, if Input == "Q" then math.pi / 20 elseif Input == "E" then -math.pi / 20 else 0) 
	Humanoid.CameraOffset = Vector3.new(if Input == "Q" then math.pi/ -2 elseif Input == "E" then math.pi/ 2 else 0,0,0)
end