How do you make it so the camera cant move more than 5 studs?

So i wanna make it where the camera can't move more than 5 stud's, Basically you can move 1 stud 2 stud 3 stud 4 stud 5 stud Then your camera is lock unless you move backwards like 4 stud 3 stud 2 ect

Super simplified (I want it so you can only rotate your camera a little to the right and a little to the left thanks.)

My attempt

while wait() do
if workspace.CurrentCamera.CFrame.LookVector == CFrame.new(-0.462089419, 0.00836229138, -0.886793852) then
workspace.CurrentCamera.CFrame = CFrame.new(-0.462089419, 0.00836229138, -0.886793852)
end
end

What this should do is check if the camera's look vector is atleast 5 stud's away then if it is it constantly set's it to that point unless they move it back this is so hard help please!

This is very easy. Just go into starterplayer, then look for the option, "CameraMaxZoomDistance". It should be 128 studs, change it to 5 studs. Done, no coding! Hope this helps, bye! :D