Archived posting to the Leica Users Group, 2018/06/20

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Subject: [Leica] Developing E-4 Ektachrome at home
From: don.dory at (Don Dory)
Date: Wed, 20 Jun 2018 11:47:08 -0400
References: <> <MMXP12301MB15020C6CD0350D6B4949577BF9770@MMXP12301MB1502.GBRP123.PROD.OUTLOOK.COM> <>

My suggestion would be to use an extreme compensating developer say Rodinal
1/100 with no agitation.  Memory tells me that the chromes have extreme
contrast that needs to be moderated.  Also, after all this time latent
images will be weak and lots of fog.

On Wed, Jun 20, 2018, 10:43 AM Howard L Ritter Jr <hlritter at> 

> I?ve read that E-4 and E-6 processes are very different, and that E-4 film
> will be ruined by E-6 processing. For one thing, E-4 film needs a
> pre-hardening step that E-6 doesn?t employ, to keep the emulsion from
> detaching from the film base. I think this might be the main obstruction to
> home processing.
> It?s been surprisingly unfruitful to google this topic.
> ?howard
> > On Jun 20, 2018, at 07:48, John McMaster <john at> wrote:
> >
> > AFAIR, E4 was lower temperature than E6 - many decades since I shot
> Kodak colour IR ;-)
> >
> > john
> >
> > -----Original Message-----
> > From: LUG [ at] On
> Behalf Of Montie via LUG
> > Sent: 20 June 2018 08:23
> > To: lug at
> > Cc: Montie
> > Subject: Re: [Leica] Developing E-4 Ektachrome at home
> >
> > If it were me, I'd be shopping around for a single shot E-6 kit
> (Formulary, B&H, etc.) There may be some still around. I'm thinkin E-4 film
> will render a usable image (if properly exposed) processed in E-6.
> > Could be wrong, again, it's been decades...But something to check on. ;-/
> >
> > Montie
> >
> >
> >>> Does anyone know anything about home processing of E-4 Ektachrome as a
> B&W negative?
> >
> > My brother just came across Dad?s old View-Master stereo camera, opened
> the back, and discovered that it had a partially exposed roll of film in
> it. He sent the camera to me and I figured out how to rewind the film.
> (Thank you, Mike Butkus at Orphan Cameras, <>)
> When I took it out, I found that it?s process E-4 Ektachrome, which I was
> told was marketed from 1963-74. I suspect the film was shot toward the
> early part of that period. I?d like to see what images of me and my sibs
> might be on it.
> >
> > It can be processed at some expense by several commercial labs, but
> they?ll develop it as a B&W negative. I?d think this could be done at home,
> since it?s the color and the reversal that take the exotic chemicals and
> the technique, correct? I know there?s a caveat about the need for
> hardening of the emulsion of E-4 film prior to processing, so this might
> make it impossible to do at home.
> >
> > Any instructions, experiences, or guidance appreciated.
> >
> > BTW, I?m running a roll of Ilford Delta 100, the highest ASA the camera
> is calibrated for ? and it goes down to ASA 4, for original Kodachrome! ?
> through it now. It might yield some interesting images for those who can
> fuse stereo pairs by staring at them onscreen. If so, I?ll post them.
> >
> > (This camera has an innovative system with linked ASA, shutter speed,
> and aperture dials, calibrated for subject brightness and for illumination
> level ? and even for summer or winter! ? obviating the need for a light
> meter. As I recall, it was quite effective even with the slide film that it
> had to use. It had fixed-focus lenses and a viewfinder that incorporated a
> spirit level below the field of view, as leveling is critical for a stereo
> camera. A flash attachment with its own built-in split-image rangefinder
> for determining the correct aperture setting was available. Because the
> stereo effect was more pronounced the closer the subject, two degrees of
> close-up lenses were available, going down to 20". Conceptually and
> mechanically, it?s a fascinating camera and system.)
> >
> >
> > ?howard
> >
> > _______________________________________________
> > Leica Users Group.
> > See for more information
> >
> > _______________________________________________
> > Leica Users Group.
> > See for more information
> _______________________________________________
> Leica Users Group.
> See for more information

Replies: Reply from tedgrant at (Ted Grant) ([Leica] Developing E-4 Ektachrome at home)
In reply to: Message from montoid at (Montie) ([Leica] Developing E-4 Ektachrome at home)
Message from john at (John McMaster) ([Leica] Developing E-4 Ektachrome at home)
Message from hlritter at (Howard L Ritter Jr) ([Leica] Developing E-4 Ektachrome at home)