What is the default camera CFrame?

I've done this script that when a player touches a brick the camera goes infront of a car model and they have the option to buy it, and when it clicks a textbutton the gui closes and the camera goes back to the player. But, I'm stuck at the part where the camera goes back to the player, because it doesn't follow the player anymore, it just stays at where it changed and doesn't move, so I guess iI have to find the default CFrame. Here is my script:

local gui = script.ScreenGui
local brickTouchedEvent = game.ReplicatedStorage.Events.BrickTouched
local player = game.Players.LocalPlayer
local camera = workspace.CurrentCamera
local char = player.Character or player.CharacterAdded:Wait()
brickTouchedEvent.OnClientEvent:Connect(function()
	oldCFrame = char.Head.CFrame -- This will set the CFrame before changing
	gui.Enabled = true
	if camera.CameraType ~= Enum.CameraType.Scriptable then
		repeat wait()
	camera.CameraType = Enum.CameraType.Scriptable
		until camera.CameraType == Enum.CameraType.Scriptable
		end
	camera.CFrame = workspace.CameraPart.CFrame
	char.Humanoid.WalkSpeed = 0
	end)
    gui.Frame.TextButton.MouseButton1Click:Connect(function()
	camera.CFrame = oldCFrame -- This piece of code right here
	char.Humanoid.WalkSpeed = 16
	gui.Enabled = false
	wait(4)
	
end)