Attempting to make camera only go left/right and up/down

Help and Feedback Scripting Support
#1

I’m trying to make the camera only rotate perfectly on the X and Y axis, like so:
image

I have been able to make the camera rotate, but I haven’t been able to restrict it to a perfect X/Y axis like above.

Code: 
if Input.KeyCode == Enum.KeyCode.Thumbstick2 then
		local MoveY = Input.Position.Y
		local MoveX = Input.Position.X
		
		if MoveY >= 0.5 or MoveY <= -0.5 then
			Camera.CFrame = Camera.CFrame * CFrame.fromEulerAnglesXYZ(MoveY * RotateSpeed, 0, 0)
		elseif MoveX >= 0.5 or MoveX <= -0.5 then
			Camera.CFrame = Camera.CFrame * CFrame.fromEulerAnglesXYZ(0, -MoveX * RotateSpeed, 0) 
		end
	end