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Rodinal
Rodinal is the trade name of a black and white developing agent produced originally by the German company Agfa based on the chemical 4-aminophenol.〔(【引用サイトリンク】url=http://adox.de/RODINAL.pdf )〕 ==History== Rodinal was patented January 27, 1891 by Dr. Momme Andresen. It was the first product sold by Agfa and is the oldest photographic product still available (2014). After the patent expired, Rodinal has been supplied under different names by other companies. Rodinal is a concentrated liquid developer with very long storage life; the working developer is used once. This may have helped sales to amateur users who did not have to make up an entire packet of developer, enough for many films but with a short life once made up.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Rodinal」の詳細全文を読む
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