Talk:E-6 process

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Addressing 2020 complaints in the "box"[edit]

Addressing the "issues" in the box, indeed it is written like a guidebook, and also, quite indeed, it is like a "technical manual," as Ektachrome processing is tricky if someone is referencing this article. As for the "single-source" complaint of the veracity of this article, I referenced Kodak Process manual Z-119 — Kodak invented Ektachrome; and Fuji adopted it in their 100%–compatible Fujichrome film and developer chemistry product lines. When in doubt, "go straight to the horse's mouth."

Source of Formulas[edit]

The recipes and formulas probably belong elsewhere (not in Wikipedia?) -- Egil 20:35, 17 December 2005 (UTC)[reply]

Yes. But can someone claim copyright on that ? Ericd 21:24, 14 March 2006 (UTC)[reply]

Not sure if copyright can be claimed, as the formulas are available publicly. The original source should still be cited though. htmlguru4242

I think its some ISO standard now ? Ericd 19:05, 17 May 2006 (UTC)[reply]

Temperature Units[edit]

The temperatures aren't in proper Celsius SI units, and this makes it very difficult to interpret as my grandparents died about thirty years ago. Ian Tindale 09:12, 29 May 2007 (UTC)[reply]

The process specification is actually in F degrees asit was speced out in the USA. Feel free to add the SI equivelents in brackets cmacd 12:49, 29 May 2007 (UTC)[reply]

Moving 3 bath hack to the discussion page?[edit]

Any comments on moving the three bath Tetenal hack to this page? Discpad 00:23, 26 August 2007 (UTC)[reply]

Still a work in progress[edit]

Hang in there: I still need to edit some more, especially the fixer formula, since ammonium thiosulfate is needed for the more vigorous fixing action. Discpad 02:03, 26 August 2007 (UTC)[reply]

Solutions for the Watkins chrome brew formula[edit]

I moved the formulas here, because although they will (barely) work, they produce erratic results. Discpad 01:18, 26 August 2007 (UTC)[reply]

Warning: The ferricyanide bleach in the Watkins recipe .[1] will cause excessive dmin in the film without a clearing bath and may hurt the image. Ektachrome films were designed to go through a Ferric EDTA bleach instead.

Caution: The phenidone-hydroquinone developing agents are Not Recommended, because they cause color crossover, bad grain, poor sharpness, and so on.

Note: A Sodium Thiosulfate fix will not be strong enough for E6 films without using very long fix times - Stick to commercial ammonium thiosulfate fixer, which is both inexpensive and plentiful.


  1. ^ "Chrome Brew - making your own E-6 from raw chemicals". opie.net. Retrieved 2007-08-21.

Restoring citations[edit]

The citations are correct, as they come directly from the Kodak Process E-6 manual and more extensive Q-Lab manual. Someone vandalized the page by removing the citations, then someone else came along and wrote "Gee, there's no citation!" FML

Why there is no negative dye image?[edit]

Can someone please explain, why in the first step there will be happen no colour coupler to colour dye transformation? As far as I understood, during developing a silver image, the colour couplers will be changed to actual colours. This must be omitted here to prevent developing a negative dye image, doesn't it? -- Pemu (talk) 17:30, 28 July 2015 (UTC)[reply]