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dave9t5 · 07-13-2015, 10:53 PM

Quote:It is hard to get more high end/premium that the Otus. One would expect impeccable quality control. If anything, given the price they charge for it, QC should be better than any other lens below that price point.

Unfortunately, as shown by Roger Cicala, it's not the case at all.

These findings are very revealing (and disappointing): the common wisdom to think that high grade lenses have better QC than entry-level consumer ones is simply not true.

You either didn't read the article or you are scoring on a different system.

According to the articles:

"A high score means there is little variation between copies. If a lens has a variance number of over 7, all copies are pretty similar. If it has a number less than 4, there's a lot of difference between copies. Most lenses are somewhere in between."



"Most of the 50mm lenses were above 6, which puts them in what we consider a good range of consistency. "



"I think some people expected the Zeiss Otus, given its higher price, to have almost no sample variation. Given the complexity of its design, with more elements in more groups and including a difficult-to-manufacture double-sided aspheric element, it does quite well."



So according to LensRentals, the Otus (at 6.5) is in a good range of consistency and does quite well.

According to you, it's a particularly disappointing!