Archived posting to the Leica Users Group, 2006/05/28

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Subject: [Leica] scanning old Kodachromes
From: don.dory at gmail.com (Don Dory)
Date: Sun May 28 07:45:05 2006
References: <000001c68231$1efad040$6501a8c0@asus930> <9b678e0605280717s18cdbe9u73f980e8af948418@mail.gmail.com> <4F67298F-9861-4B47-A18F-E36BC8526B40@cox.net>

Steve,
I found a German slide show on color loss and color restoration.
Specifically for Kodachorme at Arizona temperature you would lose about half
the life of the slide assuming humidity at 80%.  Color loss was pretty
linear with a small cyan crossover so reds would increase somewhat.  In a
practical sense you would lose saturation.  A key point though is humidity
is a necessary catalyst up to a point.

In summary, if your slides were taken on old Koadachrome stock they should
look unchanged for about 35-40 years in un-air conditioned space assuming
old Arizona climate before everybody watered the lawn and put in swimming
pools.

Don
don.dory@gmail.com


On 5/28/06, Steve Barbour <kididdoc@cox.net> wrote:
>
> Hi Don...see my little question below please...
>
> and enjoy your Sunday...
>
>
> On May 28, 2006, at 7:17 AM, Don Dory wrote:
>
> > Hoppy,
> > If your slide was stored in the dark
>
>
> how about in the dark... but occasionally exposed to  hi
> temperatures....  as here in Arizona...?  thanks, Steve
>
>
> > then I would suspect little or no
> > change in the colors.  I could tell you a tale about some
> > Ektachrome slides
> > that are about thirty years old and probably processed in the new
> > to that
> > time washless E-6.  The only color really available is red/magenta.
> > Possibly why I switched to Fujichrome so long ago.
> >
> > But color is such a personal decision.  We all see color
> > differently.  I was
> > reminded of this when I was wandering through a bunch of Cezanne
> > paintings
> > with their strange palatte for skin tones.  Did the color look to
> > Cezanne
> > like skin tone?  How much impressionism was there?
> >
> > Anyway, keep posting.
> >
> > Don
> > don.dory@gmail.com
> >
> >
> > On 5/28/06, G Hopkinson <hoppyman@bigpond.net.au> wrote:
> >>
> >> Folks I've recently started a new album and have received some
> >> helpful
> >> hints
> >> and encouragement.
> >>
> >> http://gallery.leica-users.org/analog-images
> >>
> >>
> >>
> >> One or two people made comment on an old scan of an abandoned
> >> farmhouse.
> >>
> >> One graciously shared with me what could be done with an 11X14 view
> >> camera.
> >> (thanks a bunch Jim, more gear to lust after when I'm trying to
> >> fund more
> >> Leica glass right now!)
> >>
> >> For my interest and those helpful correspondents, I have located a
> >> similar
> >> original from the same film.
> >>
> >> The original was in fact Kodachrome64 (Curse you K, why can't I
> >> buy it
> >> anymore?)
> >>
> >>
> >>
> >> So, K64 about 20+yrs old, scanned with Nikon Coolscan V scanner.
> >>
> >> Was late afternoon certainly, and I think UV filter but not
> >> Polarizer.
> >>
> >> Both versions treated as identically as possible in PS; minimal
> >> crop for
> >> format to A4 print, dust and scratch manually spot healed,
> >>
> >> minimal sharpen, But one using ROC (restoration of colour) and one
> >> without.
> >>
> >> I personally prefer the ROC version, but then for me K64 was
> >> always the
> >> colour as you'd like it to be rather than perhaps as it was.
> >>
> >> Really can't quite decide how much the original has faded. The
> >> curves &
> >> saturation in each version are as scanned, minor B&W points
> >> compression.
> >>
> >>
> >>
> >> Anyway I was surprised to see that the ICE3 Nikon Scan software
> >> would work
> >> at all on Kodachrome.
> >>
> >> Perhaps only the dust reduction doesn't work on K & B&W emulsions.
> >>
> >> If anyone else has experience in using this scanner, especially
> >> with other
> >> software, I'd love to hear from you. I have the supplied Nikon
> >> Scan 4.02and
> >> VueScan Pro.8.3.4.2
> >>
> >> Specifically your workflow, especially from those folks who shoot a
> >> hundred
> >> times more film than this amateur every year.
> >>
> >>
> >>
> >> Cheers
> >>
> >> Hoppy,
> >>
> >> FNG
> >>
> >>
> >> _______________________________________________
> >> 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
>

Replies: Reply from kididdoc at cox.net (Steve Barbour) ([Leica] scanning old Kodachromes)
In reply to: Message from hoppyman at bigpond.net.au (G Hopkinson) ([Leica] scanning old Kodachromes)
Message from don.dory at gmail.com (Don Dory) ([Leica] scanning old Kodachromes)
Message from kididdoc at cox.net (Steve Barbour) ([Leica] scanning old Kodachromes)