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EF 24-70 II returned from service - need advice

Started Feb 4, 2019 | Questions thread
RCicala
RCicala Contributing Member • Posts: 820
Re: EF 24-70 II returned from service - need advice
2

NineX wrote:

Thanks Roger for advice. I will bring lens back to service and will ask them to adjust it further. Only thing which i dont understand is how is possible that they let lens which is not adjusted properly. But obviously it is how it is, regardless service center.

People massively overestimate the amount of time spent and the amount of testing done at service centers. Everything is on the clock - a given repair should take xx minutes. If that time includes 12 minutes for optical adjustment, you generally get the best adjustment that can be done in 12 minutes.

And it's not like the lenses get put on an optical bench for testing after repair. Some shots are taken of a test chart most of the time, sometimes some computer generated projection tests are done. Less frequently some true optical testing is done. It varies depending on the brand, the center, the lens in question, and the repair type.

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