Caffenol Recipes that are proven to work can be found here. If not stated differently, the temperature of the solution should be 20 degrees Celsius or 68 degrees Fahrenheit.

Caffenol is a photographic alternative process whereby phenols, sodium carbonate and optionally vitamin C are used in aqueous solution as a film and print photographic developer. [1][2] Other basic (as opposed to acidic) chemicals can be used in place of sodium carbonate; however, sodium carbonate is the most common. [1]

2023年7月20日 · A complete guide to caffenol, the practice of developing black-and-white film with coffee and vitamin C instead of a commercial chemical.

2019年3月12日 · Enter Caffenol, the incredible liquid concoction that develops black & white film using instant coffee and washing soda to replace the nasty chemicals found in traditional …

Today our journey takes us to Nottingham in the UK and we meet up with Gabriel Van Ingen, a photographer that has mostly given up digital. Read on, and look what he has to say. Caffenol: Hi Gabriel, good to Read more…

Caffenol is an alternative photographic development process based on instant coffee, washing soda, and ascorbic acid – aka vitamin C. There are several recipes for Caffenol, the most famous being Caffenol CM and Caffenol Delta.

2010年3月12日 · My Favourite B&W Film is Ilford Professional Delta 400 for the moment. I really like the grain shape of this film: soft and round. Whenever I plan to do Caffenol Development, I overexpose the F…

2025年1月2日 · The Caffenol process offers a promising future for environmentally conscious film photographers who wish to reduce their reliance on chemical-heavy processes. While it's not completely chemical-free, it is significantly less toxic to the environment and gentler on your home plumbing system, making it an appealing choice for at-home film ...

Caffenol is a liquid concoction made out of instant coffee crystals, washing soda, and water. Sometimes people add vitamin C to the mix and call it Caffenol-C, or sometimes just caffenol.

2016年10月20日 · Caffenol is the doorway to exploring hands-on film development and there's nothing like developing film at home, with coffee, while drinking coffee. The enchantment of the era of film photography, embodied in Rochester, New York in the mid-20th century, can still be experienced in a cup of Caffenol.

2020年4月10日 · Learn how to develop black and white film with coffee in this tutorial, including a caffenol developing tips, the developer recipe, and example images,

2021年10月25日 · How does caffenol work? Coffee contains the phenol caffeic acid, which — in a pH 11 solution — reacts with the developable silver halide crystals, leaving metallic silver back on the film. When Vitamin C is added to the caffenol solution, it recharges the caffeic acid, allowing it to develop film faster.

2012年11月27日 · The Caffenol Cookbook & Bible is a project by large format photographer Bo Sibbern-Larsen who got eight other photographers together to write a book about caffenol. It’s a free book, available for download: The book is under constant development, so you will find quite some things that change from time to time – visit to visit.

2018年10月23日 · 指正：“对于咖啡显影液的主要有效成分，你这个结构倒是没错，但它不是可可因（可可碱），而是咖啡酸 (caffeic acid)。 ” 具有显影效果. 当然要做控制精确就需要做测试。 还要加一些其它物质。 比如流行的咖啡维生素C就是加了维生素，还有苏打粉。 为了减少雾化效果会加一些含碘的盐。 如果要好的效果，一般用咖啡滤纸进行几次过滤。 用温水进行溶解，然后降低到显影的温度。 这样在显影过程中不会有残渣影响。 今天图片不在手边，不过这几天我会有 …

2016年8月26日 · Caffenol is a compensating developer, and I had been accustomed to it helping me bring back highlights and draw out shadow detail, but this was something else. The compensating effect seemed enhanced, and the tonal gradation, definition and micro contrast was discernably better than I was used too.

2017年2月23日 · This developer is a mixture of ingredients that you can find on the supermarket shelves; Instant Coffee, Vitamin C, and Washing Soda (Sodium Carbonate). Best of all there’s no Metol in it. It’s affectionately called Caffenol. My video shows the quantities, and the order, in which the ingredients are added in order to have it compound correctly.

2014年4月25日 · http://www_caffenol_org/ 这个网站是专门讨论咖啡冲洗胶卷的配方和技巧的。 http://www_caffenol-cookbook_com/ 这个是手册版，可以下载阅读。 1. 速溶咖啡。 买最便宜的就好了，不要无 ※※※ 的。 越强力的越好。 其中的咖啡酸能起到类似于邻苯三酚的作用。 2. 维生素C。 其中的抗坏血酸成分起到类似于对苯二酚的作用，提高对比度，降低雾化并减少显影时间。 建议买纯维生素C晶体，不要买维生素片，因为里面可能含有其它成分。 抗坏血酸盐也可以。 …

Caffenol is an alternative film developer that uses coffee, vitamin C, and washing soda as its primary ingredients. It is a low-cost option for photographers looking to experiment with developing methods.

2012年3月11日 · I wanted to experiment with the recipe for a coffee-based film developer commonly called Caffenol. Dirk Essl at caffenol.org does an excellent job of keeping track of …

2021年7月25日 · For those who are not familiar, caffenol is a developer made from three primary household ingredients–instant coffee, washing soda, and vitamin C powder. Now I am no chemist, so I will leave the chemistry explanation to others, but the key chemicals are as follows.