QUOTE (narikin @ Jan 23 2007, 02:22 PM)
as a Zeiss owner, I sadly also disagree.
Mamiya lenses have been independently tested as out-resolving their Zeiss equivalents in the many formats, including 645.
I know 'name' and 'reputation' is what it is, however ...
shame for me, as I use Contax 645. but facts are facts.
MF lenses in general were tested by many great smart people like Kerry Thalman, and Mamiya turned out to be the ultimate Medium Format lens in nearly every case, beating all other legendary lenses - zeiss/rollei/hasselblad etc, etc.
see:
http://www.hevanet.com/cperez/MF_testing.htmland see:
http://www.hevanet.com/cperez/test/fourcameras.html for their shoot out results, from which I can quote the conclusion:
"While Mamiya has made consistantly fine camera equipment, I somehow believed that the Hasselblad was a sharper, more constrasty solution. In this test, the Mamiya 7 is the hands down winner on all accounts. On this day, there was none better."
contax 645 lenses were built down to a price, not a low price to be sure, but not the same as building
up to a true Zeiss level.
PopPhoto (I think) did a test of contax 645 vs Mamiya 645 lenses, and Mamiya won. damn it.
the 80mm may be faster but its unusable at that speed. dreadful flare and no resolution. I know, I've tried.
the rare exceptions is the macro lens (one of the few made by Zeiss in Germany)
First, the test links you provide are test the Mamiya 7 lenses and no 645 lenses at all. I agree, and have already stated how good I feel the Mamiya 7 lenses are. It will be a long time before some one will be able to pry my Mamiya 7 out of my hands. No doubt about it, the lenses are great. But they are quite a different type of lens than the Mamiya 645 lenses. We are talking about the 645 lenses and they are not the same quality, and not comparable.
Second, Pop Photo is NO authority on anything. A laughable excuse for a magazine. The allegations that test results are dictated by advertising revenue is seemingly not without merit. They are sorely lacking a reputation for a reason. You need to find a more reputable source.
Third, I don't get "dreadful flare from my 80mm f2.0 Zeiss lens. Flare is actually quite well controlled in my example, and resolution is a high as any other 80mm MF SLR lens out there. It is a bit soft wide open. but not unuably so, and not more so than other 80mm lenses wide open that are a full stop slower. And the Zeiss makro for the Contax 645 isd made in Japan, not Germany (and never has been made in Germany). Let's not confuse it with the German-made Zeiss 120mm Makro for Hassy -- the Contax 645 Makro is actually better.
QUOTE (william @ Jan 23 2007, 02:39 PM)
Attached is a recent portrait shot with the Contax 645 140mm lens (which many argue is one of the "less impressive" Contax lenses, although it's my most used for portraits,
That's because the 140 f2.8 Sonnar was designed specifically for portraits. It combines a super smooth and creamy bokeh with optimal sharpness and contrast for portraits. It does the job it was designed for exceptionally well. This is part of the issue here. This lens was not designed for ultimate resolution or sharpness so judging it on that basis alone like so many of these so-called "tests" is sad. But in it's designed use as a portrait lens it is exceptional, as William (and the many others enamoured with it) quite clearly sees.