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FX-55 is an 'eco-friendly' photographic developer for monochrome film devised by Geoffrey Crawley. It was first published in ''Amateur Photographer''.〔(Amateur Photographer ), 13 September 2008〕 It provides and alternative to Phenidone with Hydroquinone developers. Hydroquinone, like other benzene, derivatives can cause skin problems and is undesirable in quantity effluent ==General Characteristics== An exposure index of about 0.5-1EV over the ISO rating is usually possible. FX-55 has good over and underexposure characteristics, with a low background fog level. The fine, even grain produced is beneficial for digital scanning. FX-55 is particularly suitable for high-tech grain films which normally have less underexposure latitude than the traditional types such as Ilford Pan F+, FP4+ and HP5+ films and Kodak Plus X and Tri-X Pan. The creator did not assert copyright over this formula, which may be reproduced providing ''Amateur Photographer'' is cited as the source. 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「FX-55 (film developer)」の詳細全文を読む スポンサード リンク
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