Re: EIR antihalation layer (was: Dimpled pressure plates

[George L Smyth <GLSmyth@xxxxxxx>]

Willem-Jan Markerink wrote:
> 
> On 12 Jun 97 at 20:56, George L Smyth wrote:
> 
> > Willem-Jan Markerink wrote:
> > >
> > > As Ektachrome IR provides clear highlights, I assume it has an
> > > antihalation layer (or is that impossible with slides?), and hence
> is
> > > not sensitive to dimpled pressure plates.
> >
> > EIR does not have an antihalation layer, unlike its predecessor.
> 
> Fascinating!
> Is this from pictorial observation (high lights or dimples?) or by
> squeeking out Kodak rep's?....:-))
> Or did they even tell without asking?
> Any idea why they left it out this time and not before?

No, in researching for an article on EIR I had a chance to speak with
Kodak's IR guy.  This was one of the questions I asked him.  EIR is a
complete redo, as opposed to a minor change.  I "think" that it was left
out because it is on a thinner base, which (BTW) might cause some
problems with the machines that cut the film following processing.

george

- -- 
 Handmade Photographic Images     
  http://www2.ari.net/glsmyth/
*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************

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

End of Infrared-Digest V0 #61
*****************************