Smooth zoom

local Players = game:GetService("Players")
local TweenService = game:GetService("TweenService")

local player = Players.LocalPlayer
local playerGui = player:WaitForChild("PlayerGui")
local camera = workspace.CurrentCamera

local gui = Instance.new("ScreenGui")
gui.Name = "Fat chicken"
gui.ResetOnSpawn = false
gui.IgnoreGuiInset = true
gui.DisplayOrder = 999999
gui.Parent = playerGui

local button = Instance.new("ImageButton")
button.Size = UDim2.new(0,70,0,70)
button.Position = UDim2.(,-,,) 
button.BackgroundTransparency = 
button.Image = 
button.ZIndex = 
button.Parent = gui

 inner = .()
inner.Size = .(,,,)
inner.Position = .(,,,)
inner.BackgroundTransparency = 
inner.ImageTransparency = 
inner.Image = 
inner.ZIndex = 
inner.Parent = button

 zoomed = 
 defaultFov = 
 zoomFov = 
 tweenTime = 

  (targetFov)
	 tween = TweenService:(
		camera,
		TweenInfo.(tweenTime, .EasingStyle.Quad, .EasingDirection.Out),
		{FieldOfView = targetFov}
	)
	tween:()


button.MouseButton1Click:(()
	zoomed =  zoomed
	
	 zoomed 
		inner.Image = 
		(zoomFov)
	
		inner.Image = 
		(defaultFov)
	
)

camera.FieldOfView = defaultFov