Re: pinholes (correction)

[Don Roberts <droberts@xxxxxxxxxxxxx>]

Russ Rosener wrote:

> ----------
> >From: "Stan Patz" <skp113@xxxxxxxxxxx>
>
> >In my earlier post, I made a misstatement. HSI and HIE do not have
> >anti-halation coatings. The pinholes, according to Steve Hedges, are due to
> >migrating particles from an anti-static layer

> .
> >COuld the migration problems have something to do with the base rather than
> the emulsion> HIE is on a very slick polyester base, unlike the acetate base
> that most B&W films are on. Just a thought.
> Has anyone noticed this problem on the 70mm aerographic film???
>

Yes indeed. Areas with pinholes and even an occasional band of many holes
across the film looking like a splice or mark on a roller.  It seems that 70mm
is no different than any other IR film in this regard.  It has not been an
outrageous problem however, just enough to be annoying and ruin the occasional
photo ( the best one of course).  It makes me bracket more than I normally
would.


--
=========================================================
     Don Roberts -Bittersweet Productions - Iowa City, Iowa

*                                              *
"Sometimes I think we're alone. Sometimes I think we're not.
 In either case, the thought is staggering."  - Buckminster Fuller
==========================================================


*
****
*******
******************************************************
*  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  *
******************************************************