[rollei_list] Re: 135 vs. 135
- From: CarlosMFreaza <cmfreaza@xxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Tue, 17 Nov 2009 11:28:03 -0300
BTW, perhaps it's necessary to clarify that the image quality
comparison with the Xenotar used for the 35mm format becomes clear if
you compare the MTF curves for both lenses at similar distance from
the center, 21mm, the limit for the 35mm format, at 21 mm the curves
fall is more evident for the Leica lens clearly, while the curves
closer to "0", the lens center, are at least similars.
Carlos
2009/11/17, CarlosMFreaza <cmfreaza@xxxxxxxxx>:
> Photodo is a site dedicated to test lenses, the "old Photodo" site
> has tests on film cameras lenses only, you can agree or disagree with
> the results, but they use the same tests and criteria for every lens:
> The best tested Rollei lens is the Xenotar Schneider 2.8/80 for the
> 6000 cameras (TLR lenses are not included ;-), it got grade 4.1 from
> 0 to 5.
>
> The best tested Leica M lens is the Elmarit M 90/2.8, it got grade 4.5
> from 0 to 5.
> Now you need to consider that both lenses were tested as a whole and
> that the Xenotar is used for the 6x6 format and that the quality image
> for the Xenotar is exceptional for this format, comparable to the 35mm
> Leica lens and having the possibilty to enlarge the image several
> times larger than the Leica image keeping the print quality. But if
> you take the best part of the Xenotar lens to use it for the 35mm
> format, I can assure that the image quality will be at least as good
> as the Leica one if not even better.
> http://old.photodo.com/prod/lens/detail/RoSchneiderXenotar80-721.shtml
> http://old.photodo.com/prod/lens/detail/LeElmarit-M90_28-245.shtml
>
> and we are talking about one of the best Leica lenses, if we consider
> other 35mm lenses the better performance for a normal MF Rollei lens
> used for 35mm like with the Rolleikin is clear, the difference will be
> very clear really using the lenses wide open or close to wide open.-
>
> Carlos
>
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