E-4 processing

[Alex]

An old camera I inherited a week or two ago had a partly exposed roll of
Kodak E-chrome-X in it. It's marked "E-4 process". Local shop says it
can't be done any more. Is there any way of home-processing?

Alex

[Michael A. Covington]

"Alex" <alex_mac...@hotmail.com> wrote in message
news:3e7ce16c$0$22006$cc9e...@news.dial.pipex.com...

> An old camera I inherited a week or two ago had a partly exposed roll of
> Kodak E-chrome-X in it. It's marked "E-4 process". Local shop says it
> can't be done any more. Is there any way of home-processing?

Yes, although I don't have the specifics. E-4 is chemically like E-6 but
the temperature is lower. (E-6 temperatures would damage the film.) I seem
to recall that you should get one of these variable-temperature E-6 kits,
work at 70 F, and increase the first developer time. Does anyone have more
specific instructions?

--
Clear skies,

Michael Covington -- www.covingtoninnovations.com
Author, Astrophotography for the Amateur
and (new) How to Use a Computerized Telescope

[ZorziM]

In article <Dh2dnaNDQuf...@speedfactory.net>, "Michael A. Covington"
<lo...@www.covingtoninnovations.com.for.address> writes:

>Subject: Re: E-4 processing
>From: "Michael A. Covington" <lo...@www.covingtoninnovations.com.for.address>
>Date: Sat, 22 Mar 2003 17:44:22 -0500

>
>
>"Alex" <alex_mac...@hotmail.com> wrote in message
>news:3e7ce16c$0$22006$cc9e...@news.dial.pipex.com...
>> An old camera I inherited a week or two ago had a partly exposed roll of
>> Kodak E-chrome-X in it. It's marked "E-4 process". Local shop says it
>> can't be done any more. Is there any way of home-processing?
>
>Yes, although I don't have the specifics. E-4 is chemically like E-6 but
>the temperature is lower. (E-6 temperatures would damage the film.) I seem
>to recall that you should get one of these variable-temperature E-6 kits,
>work at 70 F, and increase the first developer time. Does anyone have more
>specific instructions?
>
>

That might work, but I seem to remember a way of doing it by using a
pre-hardener before the first developer. Frankly, the film is at least 25 years
old, so I wouldn't spend a lot of effort trying to process it! Maybe the
easiest thing to satisfy curiosity is to just soup it as a B&W negative?

[Mark]

If anyone can do it Id check with www.filmrescue.com. They should be able
to do it for you if it can still be done or at least know who can do it.

--
Mark

"Alex" <alex_mac...@hotmail.com> wrote in message
news:3e7ce16c$0$22006$cc9e...@news.dial.pipex.com...

[Mike King]

Right and probably cheaper than you can concoct and test the chemicals
needed to mix a hybrid E-6/E-4 or all E-4 process. There may actually be a
few labs out there still doing E-4 since the "old" Ektachrome Infrared was
E-4 or EA-5 but Film Rescue is still your best bet for a roll this old. On
the other hand I've just read through a pile of old Darkroom magazines from
various publishers and recall seeing the E-6 with pre-hardener reference.
Try this link found in Yahoo! Search for e-4 film processing:
http://www.rit.edu/~rckpph/faq/21.03.html
saves mixing the whole thing by hand
--
darkroommike

----------
"Mark" <aviator...@dp.net> wrote in message
news:b5jbh3$24f$1...@news.dp.net...

[Norman Worth]

There are lots of successful substitute formulas as well. Most are simpler
than the Kodak versions, and they avoid proprietary chemicals (distilled
water recommended though). The old Dignan Newsletters and books as well as
old issues of Photo Techniques are sources.

"friend" <me.at...@universe.org> wrote in message
news:qi0q7voc7nt2lsmcr...@4ax.com...
> full specification and formulae for E4 are to be found on Kodak's web
> site.
> use their search engine. A prehardener, neutralizer are the must if
> you want to run at elevated temp, otherwise use E. Gehret's formulae
> from the British Journal of Photography - process E-2 and E-3. These
> are not equivalents, but after over 30 years, do not expect a miracle.

[Alex]

Many thanks to all for the kind suggestions on E4 processing. I've
bookmarked the suggestions for specialist processors.

Alex

[Greg Miller]

"Alex" <alex_mac...@hotmail.com> wrote in message news:<3e7ce16c$0$22006$cc9e...@news.dial.pipex.com>...

Many thanks to those who mentioned our Company. Our recommended
process is a propritary bleach omitted process resulting in a
monochrome negative with a strong tint to it, from orange to blue.
This is then either printed onto high contrast panchromatic B&W paper
or if it is poor it is scanned and enhanced before printing. If you
allow us to use this process on your film we do not charge if we are
not successful. If you like we will run it as either a color print
film or a color slide film but the process is no longer guaranteed.
Typical success rates are as follows:

Processed in propriatary bleach omitted process 80 to 90 %

Processed into a color print film using AN-6 high contrast developer
50 to 60 %

Processed into the intended color slide 30 to 40 %

These success rates are based on properly exposed film. Even when
processed into color we often resort to B&W printing in order to
salvage the clearest image.

Greg Miller
Film Rescue International
1 800 329 8988