Hi,
Does any one know which shop provide reliable & effective sensor cleaning service? I need to send my Canon 5D Mark II for cleaning, as at f/11 I can see obvious dark spots on my photos -- many of them!!! Blower don't really help me much as it basically blowing the smudges from one spot to another. I tried Canon customer service a couple of times before, but the results were not very satisfactory; first time I ended up getting a replacement unit, second time it was a free service so cannot complaint...
Please advise. Thanks in advance.
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