Re: Seattle Film Works

[bercov@xxxxxxxxxxx (John Bercovitz)]

Tim Maffia writes:

> Motion Picture stocks are notorious for fading. Current 
> films last about 30 years under ideal conditions (about 
> 20 years ago films would last as little as 6 years). 
> The print stocks on which the slides are made last
> about the same. Current neg films for still cameras
> last about twice as long under ideal conditions. E-6 
> films can last about 150 years and Kodachromes can last 
> about 200 years.

I'd read in Pop Photo a very few years for motion picture 
stocks (contrary to Bill Carter's current evidence), 50 years 
for Kodachrome, 15 years for E-6.  I can understand the guy
saying 30 years for motion picture stocks if he's an SFW
employee and I can understand 200 years as an exaggeration
of Kodachrome's longevity, but I can't understand the E-6.
I personally have Kodachromes from the early forties which
are good and E-6 from the the early eighties which are not
too good.  And then there's the old AGFA which is really bad.
8-)  That 150 years for E-6 is a real puzzler, though.

Thanks,
John B


------------------------------