Quote:
Originally Posted by abirkill
I've no personal experience, but I've heard that when sending a poor lens back to Canon for recalibration, they actually do such a good job that it can come back as one of the best examples available.
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That is true - I had a 70-300 that I wanted checked for portraits at 300mm. They didn't mess about, they just replaced the whole optical unit with a good'n
