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

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Subject: [Leica] 28 Summicron and IR hotspot... on film
From: imagist3 at mac.com (George Lottermoser)
Date: Thu, 16 Apr 2009 10:39:50 -0500
References: <ee8fa51c0904160426v421eed02n36059619e73af28d@mail.gmail.com> <8f5413a60904160641m48b14d01k3814186648149351@mail.gmail.com> <DEF791BD-2728-4FB4-BD33-641E58B9849F@charter.net> <8f5413a60904160734q6ab4ad61h573813a1c3fda405@mail.gmail.com>

news to me as well.

Regards,
George Lottermoser
george at imagist.com
http://www.imagist.com
http://www.imagist.com/blog
http://www.linkedin.com/in/imagist

On Apr 16, 2009, at 9:34 AM, Tim Gray wrote:

> Are you implying that it occurs before the exposure through the
> shutter curtain? That's news to me...
>
> On Thu, Apr 16, 2009 at 10:20 AM, Slobodan Dimitrov
> <s.dimitrov at charter.net> wrote:
>> It's prevalent to rangefinders, as they have no mirror to act as a  
>> baffle.
>> That off course excludes the Nikon SP, of which the latter run  
>> used a metal
>> shutter.
>> It's one reason why usage of HEI took off when the SLR came into  
>> use. The
>> japanese SLRs that is.
>> A friend, back in the early 70's, converted an M4 to a metal  
>> shutter curtain
>> for that very reason.
>> It wasn't cheap, even by the neolithic economics of that era.
>> S.d.
>>
>>
>> On Apr 16, 2009, at 6:41 AM, Tim Gray wrote:
>>
>>> Well I've heard lots about hotspots on digital cameras but never on
>>> film.  Which was why I asked.
>>>
>>> If you don't want that HIE, I might be interested :D
>>>
>>> On Thu, Apr 16, 2009 at 7:26 AM, Marty Deveney <benedenia at gmail.com>
>>> wrote:
>>>>
>>>> There is some useful anecdotal info from the M8 here:
>>>>
>>>> http://forum.getdpi.com/forum/showthread.php? 
>>>> s=26793094e0d9c5042ed22f16ba1a86a8&t=257which
>>>> will apply equally to HIE or other very IR sensitive films.
>>>>
>>>> I have used a lot of HIE in the past and still have a brick  
>>>> frozen, but I
>>>> think I'll need to use it soon.
>>>>
>>>> Marty
>>>>
>>>> _______________________________________________
>>>> Leica Users Group.
>>>> See http://leica-users.org/mailman/listinfo/lug for more  
>>>> information
>>>>
>>>
>>> _______________________________________________
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>>
>>
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>
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In reply to: Message from benedenia at gmail.com (Marty Deveney) ([Leica] 28 Summicron and IR hotspot... on film)
Message from tgray at 125px.com (Tim Gray) ([Leica] 28 Summicron and IR hotspot... on film)
Message from s.dimitrov at charter.net (Slobodan Dimitrov) ([Leica] 28 Summicron and IR hotspot... on film)
Message from tgray at 125px.com (Tim Gray) ([Leica] 28 Summicron and IR hotspot... on film)