tag:blogger.com,1999:blog-1038963912631739676.post1138262118146268072..comments2024-02-14T19:08:47.362+01:00Comments on Caffenol: Caffenol C-M and C-H (RS/RSA)imagesfrugaleshttp://www.blogger.com/profile/16601551090153453277noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-1038963912631739676.post-75630190849704940882016-08-21T00:01:02.066+02:002016-08-21T00:01:02.066+02:00Hi Ian, caffeine doesn't develop at all. You c...Hi Ian, caffeine doesn't develop at all. You can even use decaffeinated coffee with success, as shown in this post:<br />http://caffenol.blogspot.de/2014/12/arabica-coffee-or-not.htmlimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-18486456352737999502016-07-09T10:51:35.037+02:002016-07-09T10:51:35.037+02:00Is there any benefit in using pure caffeine crysta...Is there any benefit in using pure caffeine crystals, rather than coffee? <br />Has anyone tried combining caffeine with conventional developing agents (for example, Metol, PPD etc?) Ian Rivlin, Queensland, Australia.Ian R - Queensland Australiahttps://www.blogger.com/profile/04226097743264125867noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-62595651700940310412016-05-24T22:18:37.626+02:002016-05-24T22:18:37.626+02:00Hi Ian,
Vit-C is always ascorbic acid. For ascorb...Hi Ian,<br /><br />Vit-C is always ascorbic acid. For ascorbate you have to adjust the pH, you're on your own.<br /><br />Recipes: http://caffenol.blogspot.de/2010/08/recipes.html<br /><br />C-C-M for slow to medium fast films < = ISO 100, C-C-H for fast films 400 ISO and more. These recipes give enhanced film speed of 1 or 2 stops without very long development times. <br /><br />Maybe the (rs) = reduced soda variant C-C-M (rs) or C-C-H (rs) is best for you. Expose with boxspeed and reduce soda from 54 g/l to 40 g/l. 12 - 15 minutes at 20 °C and regular agitation as a starting point. imagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-35981188547725657852016-05-18T07:56:05.098+02:002016-05-18T07:56:05.098+02:00When you say vitamin C, do you mean sodium ascorba...When you say vitamin C, do you mean sodium ascorbate, L-Ascorbic acid or will any ascorbate work with Caffenol? I also note that some Caffenol formulae don't use ascorbic acid. Can you let me know what are the properties of the different Caffenol recipes? I mainly shoot landscape and sidelit portraits. Can you give me your recommendations for this? Thank you. Ian (Australia)Ian R - Queensland Australiahttps://www.blogger.com/profile/04226097743264125867noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-7022096888850370652016-01-01T23:49:11.413+01:002016-01-01T23:49:11.413+01:00Hi Mike, I don't know of any film named tmax40...Hi Mike, I don't know of any film named tmax400cn.imagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-13512022577828906062015-10-30T02:32:40.822+01:002015-10-30T02:32:40.822+01:00Hi after reading through your blog on caffinol...Hi after reading through your blog on caffinol and bw400cn was wondering if you have any experience using it with tmax400cn. Thanks mikeMickjazzhttps://www.blogger.com/profile/17057068177341932945noreply@blogger.com