Talk:Photographic developer

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Merge mention made a few days ago at Talk:Film developing by User:Linuxlad. --Christopherlin 07:11, 2 February 2006 (UTC)[reply]

I would say no because it could get out of hand, film developing should be reduced to the mechanics of the process and all the chemical workings discussed under photographic developer. Alf photoman 22:33, 20 November 2006 (UTC)[reply]

Please keep the spelling of "color/colour" consistent per WP:ENGVAR. It is the intent of WP:ENGVAR that both spellings not be used in the same article without a specific reason. --VMS Mosaic 08:24, 6 April 2007 (UTC)[reply]

WP:ENGVAR states that unless a subject is strongly linked to a particular reason (not the case here), the usage of the first major contributor should be followed. In this case, that is the Commonwealth English used by User:Velela when he/she expanded the article beyond a stub more than 2 years ago [1]. --Stemonitis 09:23, 6 April 2007 (UTC)[reply]

WP:ENGVAR states that to be the case only if "all else fails". It was clear the current predominant usage was "color" per the higher priority guidelines, but since there is an argument, the "all else fails" now apparently applies. If User:Velela things the issue is so vital, why did he not correct the entire article instead of just rashly reverting my change? --VMS Mosaic 17:53, 6 April 2007 (UTC)[reply]

SInce the documentation by Kodak and Fuji uses "color" I suggest we keep it that way. Discpad 13:14, 8 June 2007 (UTC)[reply]

I have no problem with changing the entire article to "color" since that was what WP:ENGVAR indicated when I first looked at the article. However, if the change is made, then it must be made to the entire article instead of just part of it --VMS Mosaic 17:26, 8 June 2007 (UTC)[reply]

As a speaker of commonwealth English and as a photographer who has spent much time in the darkroom, I expanded the original stub using a form of English accepted as of equal value by Wikipedia. The fact that two major manufacturers of film use the word color rather than colour doesn't seem to justify, in itself, a change of dialect of English in the article as a whole. This article is about developer and its use and not about the proprietary brands of films. In this context it may be interesting to note that even Kodak packaged their Kodachrome 64 film in the UK with the description "...for colour slides". I would agree that consistency is important and I regret if I missed some corrections when reverting. Edits are not always as perfect as we might wish them to be. Velela 19:18, 8 June 2007 (UTC)[reply]

Reversal film development

Goo day,

I like to know about the products that can help with Reversal film development. where it could be found, suppliers, prices ....etc,

thanks

Ekraam —Preceding unsigned comment added by 85.31.90.214 (talk) 12:30, 12 December 2008 (UTC)[reply]

Temperature

When did the developer change from 100F to 100.4F? (The tolerance is small enough for that to matter, though I am not sure I kept it that close.) I used to do my own E6 in the 1980's, and am pretty sure I remember 100.0F. Gah4 (talk) 04:05, 7 August 2009 (UTC)[reply]

Dissolution order

Shouldn't adding at least part of the alkaline compound help in dissolving the metol? While salts often limit the solubility of organic compounds in water transforming acid compounds (e.g. the phenolic group on the metol) into its sodium salts could be expected to increase its solubility, couldn't it? 150.227.15.253 (talk) 10:39, 19 February 2019 (UTC)[reply]

Some developer formulae have a specific order, I suspect for that reason. Usual for packaged developers, it is all mixed together. Gah4 (talk) 11:45, 20 February 2019 (UTC)[reply]

Reversal bleach

The article mentions Fe3+EDTA as bleach in reversal development for colour photography. Wasn't potassium ferricyanide K3Fe(CN)6 a classic bleach for this purpose? Actually it was, see the article on that compound.150.227.15.253 (talk) 10:54, 19 February 2019 (UTC)[reply]

For some, they use a combination bleach-fix (or blix), and it might be that ferricyanide doesn't work in that case. Or maybe another reason that I forgot. I would expect ferricyanide to be cheaper, but maybe not. Gah4 (talk) 13:18, 19 February 2019 (UTC)[reply]

Potassium_ferricyanide suggests that it is environmental reasons. Very strong acids will release cyanide, but only very strong ones. It was common in chemistry sets for kids, so obviously is pretty safe. Gah4 (talk) 11:44, 20 February 2019 (UTC)[reply]

Development time

Is the opening really correct when it says that an entire film or paper will turn black if left in the developer? It's decades since I did that kind of photography, but I was very much taught to "develop to finality", ie leave the paper in the developer until it is no longer changing. Snatching it out earlier was a recipe for poor contrast. — Preceding unsigned comment added by 82.71.61.128 (talk) 15:37, 16 March 2021 (UTC)[reply]

Papers, unlike films, are developed to finality. I suspect, though, if you leave it in long enough it will eventually turn black. Maybe days or weeks. Gah4 (talk) 21:48, 11 February 2022 (UTC)[reply]

Black and White photography

Wha happens if we prepare a developer leaving one of the ingredients? 2409:4072:6C11:F6D7:C56:89F6:E6BB:96C4 (talk) 16:35, 11 February 2022 (UTC)[reply]

It depends on which ingredient. For many of the ingredients, the film will be totally ruined and you won't have the slightest idea what the photographer was trying to take a picture of. For other ingredients, the negative will be too light or too dark, and many of the details of the scene will be lost. Jc3s5h (talk) 17:01, 11 February 2022 (UTC)[reply]