Archived posting to the Leica Users Group, 2009/04/24

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Subject: [Leica] What is an "archival slide"?
From: stasys1 at cox.net (Stasys Petravicius)
Date: Fri, 24 Apr 2009 06:41:04 -0700
References: <9b077d05b9b5fc4f974e272b67fd000a@cox.net><B485F54D1E344063B0A060BB17E09DA1@your9ya3hf92n3> <95541ae9cbb6387896d71bb8c6452f95@cox.net> <3937FAE316B74E7EB6EB50EB35B765F7@your9ya3hf92n3>

Piers- Thanks for the reference to the Wilhelm book. Stasys
On Apr 24, 2009, at 3:37 AM, Piers Hemy wrote:

> I located the research document, for those who want to get the full 
> detail
>
> http://www.wilhelm-research.com/book_toc.html
>
> Chapter 6 of this 759 page tome is the one to look at "Projector-Caused
> Fading of 35mm Color Slides", headlined "Fujichrome Films Have the 
> Longest
> Life When Projected" - my recollection was a bit off the mark.
>
> -----Original Message-----
> From: lug-bounces+piers=hemy.org at leica-users.org
> [mailto:lug-bounces+piers=hemy.org at leica-users.org] On Behalf Of Stasys
> Petravicius
> Sent: 24 April 2009 05:00
> To: Leica Users Group
> Subject: Re: [Leica] What is an "archival slide"?
>
> Piers- Thanks for the input! Stasys
> On Apr 23, 2009, at 1:10 AM, Piers Hemy wrote:
>
>> It depends.
>>
>> My recollection of a study bu US archivists is that if you need a
>> slide that with the greatest life when projected, Ektachrome is best.
>> If you want a slide with the greatest un-projected life, then it's
>> Kodachrome.
>>
>> To put it another way, Ektachrome last longer than Kodachrome when
>> used in a back-projection display panel, but Kodachrome lasts longer
>> than Ektachrome when stored in a cool dark dry place.
>>
>> In my own experience with 50 year old slides of various types (both
>> the above, Agfachrom, Gevacolor, Anscochrome, Ferrania, Perutz etc),
>> Kodachrome is the *only* one worth considering.
>>
>> HTH
>>
>> -----Original Message-----
>> From: lug-bounces+piers=hemy.org at leica-users.org
>> [mailto:lug-bounces+piers=hemy.org at leica-users.org] On Behalf Of
>> Stasys Petravicius
>> Sent: 23 April 2009 01:02
>> To: Leica Users Group
>> Subject: [Leica] What is an "archival slide"?
>>
>> Stasys
>>
>>
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>
>
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In reply to: Message from stasys1 at cox.net (Stasys Petravicius) ([Leica] What is an "archival slide"?)
Message from piers at hemy.org (Piers Hemy) ([Leica] What is an "archival slide"?)
Message from stasys1 at cox.net (Stasys Petravicius) ([Leica] What is an "archival slide"?)