Archived posting to the Leica Users Group, 1999/01/15

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Subject: [Leica] Re: Re: Lens test results
From: Jim Brick <>
Date: Fri, 15 Jan 1999 14:21:53 -0800

This certainly sounds like a really crappy design to me!!! I have no
autofocus lenses. I have no use for autofocus. And if this cheesy design is
the norm, I'm appalled.


At 01:01 PM 1/15/99 -0800, Lucian wrote:
>Have you any AF lenses? In order to get the motor a chance of turning that
>lens, the lens play is considerable compared to a MF lens. 
>In fact, if you haven't used an AF lens you would feel it wobble in the
>mount. That makes for differently focused areas in the picture, (for
>example if you have the center focused the top won't be and the bottom
>won't be either, because it tilts due to the play) as well as the lens
>moving at the slightest touch in manual focus mode.
>Hope this clears the confusion,
>On Fri, 15 Jan 1999, Jim Brick wrote:
>> Someone wrote:
>> >> Lenses made for manual focusing produced sharper
>> >> images than their equivalent AF lenses.  Even focusing the AF lens manual
>> >> did not do better.
>> >
>> Am I to believe that, if you have two lenses, identical design, one is AF
>> and the other is manual. And you MANUALLY focus both lenses, the "manual
>> only" lens will be sharper? This makes no sense to me. What am I missing?
>> Jim