Archived posting to the Leica Users Group, 2003/03/30

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Subject: Re: [Leica] 80-200 question
From: Rolfe Tessem <rolfe@ldp.com>
Date: Sun, 30 Mar 2003 09:59:46 -0500
References: <BAAC0634.C4F9%telyt@earthlink.net>

- --On Sunday, March 30, 2003 2:25 AM -0800 Doug Herr <telyt@earthlink.net> 
wrote:

> on 3/29/03 9:14 PM, Marc Attinasi at marc@attinasi.org wrote:
>
>> I just received a new 80-200 f4 today - my first brand new leica lens.
>> I noticed while testing it out that the focus moves beyond infinity. Is
>> this normal? I have never had another Leica lens that did this, it
>> seems incorrect.
>>
>> I focused on a mountain ridge that is 13 miles away - that is as close
>> to infinity as I can get since the moon is not out...
>>
>> Thanks,
>> - marc
>>
>
> The focus ring of my late 250mm Telyt moves beyond infinity.  It allows
> for thermal extremes.
>
> Doug Herr
> Birdman of Sacramento
> http://www.wildlightphoto.com

Same with my 180/2.8 APO. I asked Leica about it and was told it is 
designed that way to allow for thermal expansion, that is to make sure it 
can still hit infinity in thermal extremes.

Rolfe

- --
Rolfe Tessem
rolfe@ldp.com
Lucky Duck Productions, Inc.
- --
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In reply to: Message from Doug Herr <telyt@earthlink.net> (Re: [Leica] 80-200 question)