[rollei_list] Re: Capa's Cameras
- From: aghalide@xxxxxxx
- To: rollei_list@xxxxxxxxxxxxx
- Date: Sat, 26 Sep 2009 16:37:11 +0000
Using the USAF resolution targets, we found in our tests, in general, that Nikkor lenses, produced images of higher contrast than (serenar) Canon lenses. Canon lenses seemed to have produced lower contrast like Leitz lenses of their time. Nikkor produced higher contrast like Zeiss lenses of their time.
Ed Meyers
-------------- Original message from FRANK DERNIE <frank.dernie@xxxxxxxxxxxxxx>: --------------
Without wanting to take issue in any way with your knowledge of history, I can assert, from and engineering standpoint, that a copy of something as complex as a Sonnar lens could be either worse or better than the original. Nippon Kogaku was a capable optical company. If, in their analysis of the Sonnar designs they had available, they were able to achieve either higher precision or better thermal compensation, examples of their copies could produce consistently
> superior results than a less precise example of the same design. OTOH one of the best pors of my acquaintance, now retired, used to hand select his nikkors at the importers and told me there was very considerable sample
> variation. The complex and inexpensively made plastic lenses of today suffer from extreme sample variation too. Luckily for the manufacturers most users are not that
> discriminating.
> Frank
>
>
>
> ----- Original Message ----
> From: Marc James Small
> To: rollei_list@xxxxxxxxxxxxx
> Sent: Saturday, 26 September, 2009 3:32:44 AM
> Subject: [rollei_list] Re: Capa's Cameras
>
> At 03:49 PM 9/25/2009, Carlos Manuel Freaza wrote:
> >Marc, this is part of the article quoting New York Times, Life, US Army, etc.:
> >
> >Encounter with "LIFE" Photographers
> >One day in June 1950, David Douglas DUNCAN, a staff photographer for
> >"LIFE," Horace BRISTOL of "FORTUNE," and MIKI, Jun who was actively
> >working at "LIFE" as the only Japanese contract photographer there,
> >visited our Ohi Plant.
> >In reference to their visit, MIKI wrote an article entitled "Nikkor
> >and I" in the "Nikkor Club Quarterly magazine No. 26" (issued on
> >November 30, 1963), as follows :
> >
>
> Carlos
>
> Don't waste your time copying tripe like this. It is ALL BS. Untrue. These
> evaluations and tests were cooked so that the Photo Editors would permit their
> photographers to use Canon and Nikon lenses. They were not valid tests. These
> tests were repeated in the US by several independent labs and, more
> significantly, by Zeiss and Leitz, and no distinctions at all could be found.
> Zeiss even had made the US tests part of the lawsuit the Allied Control
> Commission refused to allow it to file.
>
> Yes, the Nikon and Canon folks have been making much of these faked tests for
> six decades but a faked test is a faked test, and all of the advertising hype
> will not improve the performance of a lens.
>
> And answer the central point: how can an exact copy using the same materials
> and built to the same standards exceed the original in performance. Riddle me
> that one, Batman!
>
> Marc
>
>
> msmall@xxxxxxxxxxxx
> Cha robh bàs fir gun ghràs fir!
>
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