[pure-silver] Re: Ektapan film
- From: Leigh Solland <solland@xxxxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Wed, 06 Oct 2004 17:53:31 -0600
Richard Knoppow wrote:
> ----- Original Message -----
> From: "David Starr" <davestarr@xxxxxxxxxxxxx>
> To: <pure-silver@xxxxxxxxxxxxx>
> Sent: Wednesday, October 06, 2004 12:44 PM
> Subject: [pure-silver] Ektapan film
>
> >I got some 4x5 holders via Ebay that have film in them. I
> >pulled a
> > dark slide & there it was, so removed that sheet & checked
> > the
> > notches. It's Ektapan. The massive development chart
> > lists it under
> > discontimued, and I'm wondering how old it may be.
[snip]
> Ektapan was discontinued only a couple of years ago. It
> was an ISO-100 version of Plus-X Pan sheet film with the
> same very long toe characteristic but with the speed
> adjusted to match ISO-100 color film so that the two could
> be used interchangibly on the same set up. I am not sure if
> Kodak still has a data sheet for it on-line but I am pretty
> sure I have one someplace.
Here is what it says about Ektapan in the Kodak Darkroom Dataguide for Black
and White, 5th Edition, first 1976 printing:
EKTAPAN 4162 (Ektar thick base) - Panchromatic - ASA daylight 100, tungsten 100
- graininess Very Fine - resolving power Medium
Developing time/temp combinations for several developers are listed.
For D-76 (undiluted): 10 minutes at 68 F (20 C) for average contrast, 7 minutes
for lower, 15 minutes for higher.
For Microdol-X and D-76 (1:1): 13 1/2 minutes at 68 F (20 C) for average
contrast, 9 1/4 min for lower, 19 1/2 min for higher.
Also mentioned are Polydol, DK-50 (1:1), HC-110 dil A, HC-110 dil B.
Explicitly "not recommended" is Microdol-X (1:3).
Hope this is helpful. For old films, I have used D-76 straight, and given
about 50% more time than specified in the developer, for no particular
scientific reason. Sometimes it
works.
Leigh
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