Dust in my 70-200 2.8 II

[Alan]

My 24-105 came with spot on an inner element. It looked like a chip or something but it was actually a spec of grease or something. If I looked closely at my pics I could notice a very slight blemish in the shots that I'd really have convince myself it was anything at all. So I left it alone until I decided to sell the lens. I wanted to be able to say the lens was perfect so I sent it back to Canon since it was less than a year old and the cleaned it out.


If I were you I'd send it in and not exchange it. When you send it back to Canon a skilled tech will calibrate the lens also. Every time I've sent a lens in for service it has come back seemingly sharper.
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Keith, what did that service run cost you for the cleaning and calibration? I'm more interested in the calibration.

[Keith B]

[Keith, what did that service run cost you for the cleaning and calibration? I'm more interested in the calibration.

Alan


It was free because it was still under warranty. I don't know what they would charge for a lens that is more than a year old.