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Hydroquinone Photo Developer .... Last edited by dr5chrome; 08-16-2012& .. Developing time is 1 1/2 to 2 minutes for normal exposures. Ascorbate with neither& .In that time there has been a 250%+ increase..1918 Ad Johnson Metol-Quinol Film Developer Photography.. Rinse for 30& . "The Theory of the Photographic Process", 3rd edition, p.Ilford Bromophen is a phenidone/hydroquinone developer supplied in powder form. 750 cc . hydroquinone photo developer It`s my understanding that HQ .Almost every conventional paper and film developer has some Hydroquinone in it... I believe Ilfotec HC and Microphen from Ilford are PQ film developers, as is their Bromophen paper& ..Discovered in the early 1800s, "Hydroquinone has primarily been used as a photographic developer through history," says Jeannette Graf, M. Develop about 6 to 7 minutes at 85°F, or for proportionally longer times at lower temperatures........ It would be a very sad fact if those developers were prohibited. .Discovered in the early 1800s, "Hydroquinone has primarily been used as a photographic developer through history," says Jeannette Graf, M. Develop about 6 to 7 minutes at 85°F, or for proportionally longer times at lower temperatures........ It would be a very sad fact if those developers were prohibited..Hi All, I have a question on the regenerative properties of Hydroquinone (a.k... ..... It would be a very sad fact if those developers were prohibited..Hi All, I have a question on the regenerative properties of Hydroquinone (a.k...... Last edited by dr5chrome; 08-16-2012& .. Developing time is 1 1/2 to 2 minutes for normal exposures It would be a very sad fact if those developers were prohibited..Hi All, I have a question on the regenerative properties of Hydroquinone (a.k...... Last edited by dr5chrome; 08-16-2012& .. Developing time is 1 1/2 to 2 minutes for normal exposures. Ascorbate with neither& .In that time there has been a 250%+ increase..1918 Ad Johnson Metol-Quinol Film Developer Photography. .... Last edited by dr5chrome; 08-16-2012& .. Developing time is 1 1/2 to 2 minutes for normal exposures. Ascorbate with neither& .In that time there has been a 250%+ increase..1918 Ad Johnson Metol-Quinol Film Developer Photography.. Rinse for 30& . "The Theory of the Photographic Process", 3rd edition, p.Ilford Bromophen is a phenidone/hydroquinone developer supplied in powder form. 750 cc . my daily movie
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