i just bought a used 70-200 and it has a large piece of dust inside the front element. I'm going to return it but the previous owner offered to pay to have it cleaned. I'm in Charlotte NC and wonder if any local places could do it or does it have to go back to Canon.... Anyway can it be done for less than $100

no textRandyDPReviewwrote:i just bought a used 70-200 and it has a large piece of dust inside the front element. I'm going to return it but the previous owner offered to pay to have it cleaned. I'm in Charlotte NC and wonder if any local places could do it or does it have to go back to Canon.... Anyway can it be done for less than $100