my beloved 50L .... it feels like the focus ring is "slipping". if i slowly move the focus ring between the two extremes, i can "feel" sudden jump in the focus ring sometimes. and it happens at pretty much any place in the turn.
is this normal? i dont think this existed before on my 50L.
does this mean something insidee is busted? like uhhhm some gear teeth?
can this be fixed by canon? if so what kind of price?