Originally posted by selar No, I am talking about Limited primes, such as the FA77 limited and FA31 LTD that provide very pleasing results inspite of photozone's analysis.
Somebody said in a previous thread about Photozone that they are very into numbers, as seen in the MTF segments of the tests. While I openly admit to pouring over their data far too much to be healthy, I have to remind myself these have nothing to do with actually using the glass.
I can't explain why Photozone gives the DA* 50-135mm generally very good praise and then slap it with only 3.5 stars out of 5 for its optical quality, but then again they've given the same score to several Zeiss lenses, too. I understand that's a zoom versus a luxury prime; my point is that they don't seem to unfairly favor a particular brand, no matter what the reputation is. In the case of the FA 77 ltd. it's not necessarily that the lens had any particular failing, but instead it appears the lens performed in step with others in the same class. In other words, it was quite good, but it didn't stand out, either.
I really think any Photozone reader needs to be able to recognize the data that's most important to them. I've learned to pay close attention to the chromatic aberration figures, but I could not care less about vignetting. Those stars at the end of the articles have no impact on me, but I certainly take note when the reviewer mentions that a test needed to be canceled because of a manufacturing defect.
I should also mention that DxO Mark is another example of the whole stars vs. measurements vs. actual usage of a lens. The Sigma 17-50mm 2.8 HSM OS scored head-and-shoulders above the Tamron 17-50mm 2.8 as a landscape lens: 4.5 stars over Tamron's 3 stars. Yet, both lenses score admirably (and similarly) in terms of resolution, and the Sigma actually does worse when color fringing is considered. Granted, these are tests based on different camera bodies, but that only goes to show that their star ratings can't be the final word.
Pentax glass on DxO, generally, gets very low marks. But they were also tested on older bodies. Nikon, on the other hand, gets high numbers. But they are tested on newer models with higher resolution, newer anti-aliasing filters...
In the end, sometimes you simply need to listen to what others are saying based on experience and not worry about every measured figure.