Archived posting to the Leica Users Group, 2005/03/16

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] R lenses and variable apertures
From: telyt at earthlink.net (Doug Herr)
Date: Wed Mar 16 19:02:24 2005

Daniel, you are reading WAY more into my posts than I wrote.  I never wrote
that ALL non-Leica zooms are UNusable.  You inserted the ALL and UN.  This
really is silly, and a watse of bandwidth.  Over and out.

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com


on 3/16/05 2:15 PM, Daniel Ridings at daniel.ridings@edd.uio.no wrote:

> You said it yourself, Doug. It's silly because they are not unusable,
> contrary to your original statment.
> 
> If I were to follow your logic, all zooms are unusable (which I happen
> to think they are, unless they have a maximum aperture of at least 2.8.
> Anything slower is unusable, regardless of lack of light falloff or
> fallout).
> 
> Best,
> Daniel
> 
> Doug Herr wrote:
>> on 3/15/05 11:59 PM, Daniel Ridings at daniel.ridings@edd.uio.no wrote:
>> 
>> 
>>> 
>>> Doug Herr wrote:
>>> 
>>>> and
>>>> unlike many of the competitors' zoom lenses the Leica zooms are fully
>>>> usable
>>>> at maximum aperture.
>>> 
>>> That was a silly remark, Doug. I guess Canon's lenses are unusuable at
>>> maximum aperture, since I know that Nikkors are. Are there any other
>>> competitors.
>>> 
>> 
>> 
>> Daniel,
>> 
>> Many comparison tests have shown that C and N zooms, for example 80-200
>> f/2.8 types, have significantly more light fall-off and flare at maximum
>> aperture along with less-than-optimum image detail.  That's not the same 
>> as
>> unusable, it means that their use is restricted at maximum aperture unless
>> you are willing to accept these optical artifacts.  The same tests show 
>> far
>> fewer optical artifacts in the Leica 70-180 APO.  Why is this silly?
>> 
>> Doug Herr
>> Birdman of Sacramento
>> http://www.wildlightphoto.com
>> 
>> 
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
> 
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information


In reply to: Message from daniel.ridings at edd.uio.no (Daniel Ridings) ([Leica] R lenses and variable apertures)