the lens has jammed at 55 mm other than taking it to profesional repairer any ideas how to fix and explain why this could happen . the lens isof course just out of guarantee
because it's faulty ....
that's what happens when things break ....
it could be absolutely anything ... only way is to dismantle and look ... or hit it repeatedly in different directions then see if that's cleared whatever
It is nearly a fortnight since posting your question and getting responses yet you have not thanked anybody for replying. Common courtesy is free and should be served without hesitation.