Archived posting to the Leica Users Group, 2009/01/07

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Subject: [Leica] Make sure your film scanners are clean
From: simon.apekop at gmail.com (simon jessurun)
Date: Wed Jan 7 19:24:32 2009
References: <1be504db0901071013s51b2c183k6edc66c4075fabb3@mail.gmail.com> <6.2.1.2.2.20090107145839.02ce2918@pop.med.cornell.edu>

Hi Chris ,never occured to me before but you are the person to inquire about
the health hazards of the kodak aero ektar 175 /2.8 lens?I have read many
articles about it but didn't find anywhere howfar one has to be away from
thorium glass lets's say in a bedroom to have negkigable health risk.
Best simon jessurun

On Wed, Jan 7, 2009 at 9:23 PM, Chris Saganich 
<chs2018@med.cornell.edu>wrote:

> Phill,
>
> Scary really, the one I disassembled had a haze of extremely fine particles
> coating the mirror, much like the haze in an old lens.  I'll have to
> reevaluate some of my film developing conclusions since I use the scanner 
> to
> determine things like relative acutance and edge effects from 
> developer/film
> combinations.  Hmmm.
> Chris
>
> At 01:13 PM 1/7/2009, you wrote:
>
>> Chris Saganich wrote:
>> The clue was there in the previous discussion when someone wondered
>> why the bleeding was reversed from conventional film developing.  It makes
>> sense now.  Now we know, thanks again.
>> =================================
>>
>> That was me, Chris.  At the time I thought about the possibility of a
>> scanner problem but didn't follow up in my comments.
>> Impressive to see the difference a clean mirror can make.
>>
>> --
>> Phil Swango
>> 307 Aliso Dr SE
>> Albuquerque, NM 87108
>> 505-262-4085
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>>
>
> Chris Saganich MS, CPH
> Senior Physicist, Office of Health Physics
> Weill Medical College of Cornell University
> New York Presbyterian Hospital
> chs2018@med.cornell.edu
> http://intranet.med.cornell.edu/research/health_phys/
> Ph. 212.746.6964
> Fax. 212.746.4800
> Office A-0049
>
>
>
>
>
>
>
>
> "I am the radiation"
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>

In reply to: Message from pswango at att.net (Phil Swango) ([Leica] Make sure your film scanners are clean)
Message from chs2018 at med.cornell.edu (Chris Saganich) ([Leica] Make sure your film scanners are clean)