Hello,
I have my eye on a used Canon 600mm f/4 lens. Once I purchase the lens I might send it in for cleaning. Has anybody had their super telephoto lens cleaned? How much did it cost you? A friend of mine had his 70-200mm cleaned and it costed him $200 (US). I am just wondering how much of a cost difference there will be since there is so much more glass. The reason for the cleaning is because there appears to be a lot of dirt (not dust) on the inside elements.
John