Archived posting to the Leica Users Group, 2009/04/16

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Subject: [Leica] 28 Summicron and IR hotspot... on film
From: len-001 at verizon.net (Leonard Taupier)
Date: Thu, 16 Apr 2009 11:39:36 -0400
References: <8f5413a60904150646i1450cd36ne150958ccf03f8c9@mail.gmail.com><A44964CD-81D7-490F-861A-927B4BE40D99@verizon.net> <BLU0-SMTP5962B3EDB24AB111075AB08C7D0@phx.gbl> <041620090131.26522.49E68A69000BFE760000679A223045151403010CD2079C080C03BF970A9D9F9A0B9D09@mchsi.com>

The 28mm Elmarit pre-asph is fine as well.

Len


On Apr 15, 2009, at 9:31 PM, grduprey at mchsi.com wrote:

>
>
> The 28 Summicron hot spot issue has been discussed quite  
> extensively on the Leica User Forum and even here a couple of  
> times.   The 28 Elmarit Asph does not have this problem.
>
>
> Gene -------------- Original message from Vick Ko  
> <vick.ko at sympatico.ca>: --------------
>
>
>> Eh, ?
>>
>> First I've heard of it.
>>
>> ...Vick
>>
>>
>> Leonard Taupier wrote:
>>> Tim,
>>>
>>> The 28mm Summicron is known to give hotspots when shooting IR,  
>>> film or
>>> digital.
>>>
>>> Len
>>>
>>>
>>> On Apr 15, 2009, at 9:46 AM, Tim Gray wrote:
>>>
>>>> So I shot some HIE the other week, and to my surprise, a lot of the
>>>> frames have an IR hotspot in the middle of the frame. I've heard  
>>>> this
>>>> happens with digital and some lenses, but had never heard of it
>>>> happening with film.  I was using my 28 Summicron with an R72  
>>>> filter.
>>>>   Anybody else have this occur while shooting film?
>>>>
>>>> _______________________________________________
>>>> 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
>>>
>>>
>>
>>
>> _______________________________________________
>> 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 tgray at protozoic.com (Tim Gray) ([Leica] 28 Summicron and IR hotspot... on film)
Message from len-001 at verizon.net (Leonard Taupier) ([Leica] 28 Summicron and IR hotspot... on film)
Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] 28 Summicron and IR hotspot... on film)
Message from grduprey at mchsi.com (grduprey at mchsi.com) ([Leica] 28 Summicron and IR hotspot... on film)