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10-02-12, 12:27 PM
N-Photo Tech Ed
Join Date: Jan 2012
Some good points have been made here and they highlight issues to do with lens testing generally. We do find that subjective tests (what the reviewer says about real-world images) and lab test results don't always tie in, which is why we feature both.
Lab tests are very precise, but they're carried out in extremely specific conditions which might reflect one aspect of real-world use, but not all of them. We have to allow for the tester's subjective judgement, then, and also for the physical characteristics of lenses and their handling properties when coming up with a final rating.
Sorry if it ends up confusing, and this is something we're working on.
Rod Lawton, Technique Editor, NPhoto
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