Making a binocular tool, not working?

I’m making a binocular gamepass with adjustable zoom from 1.5x to 3x. My issue is in the adjustable zoom part, the binoculars will zoom in and refuse to zoom out whether I have the binoculars turned on or not. I tried adding a debounce system, however, it helped me to no avail. Searching through Google/Devforum was no help either. Any help as to what I’m doing wrong and how I can fix it please?

local TS = game:GetService("TweenService")
local TI = TweenInfo.new(0.35, Enum.EasingStyle.Quad, Enum.EasingDirection.Out, 0, false, 0)
game.ReplicatedStorage.AllowBinoculars.OnClientEvent:Connect(function()
	local camera = workspace.CurrentCamera
	local min = 1.5
	local currentZoomLevel = 2
	local max = 3
	local player = game.Players.LocalPlayer
	local mouse = player:GetMouse()
	local isZooming = false
	game.UserInputService.InputBegan:Connect(function(input, gpe)
		if gpe then return end
		if input.KeyCode == Enum.KeyCode.B and not isZooming then
			isZooming = true
			script.Parent.Visible = true
			local tween = TS:Create(camera, TI, {FieldOfView = camera.FieldOfView / currentZoomLevel})
			tween:Play()
			player.CameraMode = Enum.CameraMode.LockFirstPerson
			local function WheelForward()
				if camera.FieldOfView > camera.FieldOfView / max  then
					camera.FieldOfView = camera.FieldOfView / (currentZoomLevel + 0.05)
					print(camera.FieldOfView)
				end
			end
			local function WheelBackward()
				if camera.FieldOfView < camera.FieldOfView / min  then
					camera.FieldOfView = camera.FieldOfView / (currentZoomLevel - 0.05)
					print(camera.FieldOfView)
				end
			end
			mouse.WheelForward:Connect(WheelForward)
			mouse.WheelBackward:Connect(WheelBackward)
		end
	end)
	game.UserInputService.InputEnded:Connect(function(input, gpe)
		if gpe then return end
		if input.KeyCode == Enum.KeyCode.B and isZooming then
			isZooming = false
			script.Parent.Visible = false
			local tween = TS:Create(camera, TI, {FieldOfView = camera.FieldOfView * 3})
			tween:Play()
			player.CameraMode = Enum.CameraMode.Classic
		end
	end)
end)