tag:blogger.com,1999:blog-1038963912631739676.post5853411755481372308..comments2024-02-14T19:08:47.362+01:00Comments on Caffenol: Caffenol-C-H "highspeed"imagesfrugaleshttp://www.blogger.com/profile/16601551090153453277noreply@blogger.comBlogger28125tag:blogger.com,1999:blog-1038963912631739676.post-65710008411012745302014-10-02T13:40:45.079+02:002014-10-02T13:40:45.079+02:00Thank you very much for the update, Matt. Another ...Thank you very much for the update, Matt. Another guy found that his A+H soda had 8 % water, so your results are very close.<br /><br />For C-C-H it shouldn't be a major problem, but surely for C-C-L. Glad you found the cause - R.imagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-38523251388928016312014-09-28T16:49:34.900+02:002014-09-28T16:49:34.900+02:00Since my first comment, I figured out the source o...Since my first comment, I figured out the source of my problem: it's exactly as you say - it was a shortage of soda. I performed the heating test and the AH I have is apparently ~9% water. I increased the soda by 10% and am really happy with the negatives.<br /><br />Thank you!Anonymoushttps://www.blogger.com/profile/16945567210584960097noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-48110475478249553612014-09-28T13:00:15.965+02:002014-09-28T13:00:15.965+02:00Hi Matt, please forgive the delay to answer your q...Hi Matt, please forgive the delay to answer your question. Sounds like you did everything well. Maybe there's something with your ingredients. Most of the time it's the soda, but A+H should be fine. Hm.... first you should make a heating test of the soda form the water content:<br />http://caffenol.blogspot.de/2010/03/soda-myth-and-truth_07.html<br />and<br />http://caffenol.blogspot.de/2011/02/trouble-shooting.html<br /><br />If everything is fine you should ask in a forum or the flicktr caffenol group:<br />https://www.flickr.com/groups/caffinol_private_palace<br /><br />Analysing a problem via comments here is not the best way. More people may have other ideas.<br /><br />Good luck. imagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-59731915636989061462014-09-22T15:43:15.436+02:002014-09-22T15:43:15.436+02:00Hi Reinhold,
Thanks for the great blog... Forgiv...Hi Reinhold, <br /><br />Thanks for the great blog... Forgive me for the rookie question - I'm just getting started with Caffenol. My first few attempts have resulted in underdeveloped negatives every time. I've tried both the -L and -H versions with pretty much the same results. In both cases, I followed the instructions carefully (measuring carefully with a gram scale) in the Recipe section of the caffenol cookbook. Do you have any suggestions for how to improve underdeveloped negatives? I'm pretty sure its under development as the words along the sides of the negative are barely visible. The film I'm using is fresh Kodak Tri-X exposed at box speed. I'm using Arm & Hammer Super Washing Soda, 100% ascorbic acid, kBr, and Maxwell House instant coffee. Should I try adding more time or changing up the mix? Thanks in advance! <br /><br />MattAnonymoushttps://www.blogger.com/profile/16945567210584960097noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-35599235893950506322010-06-24T07:01:40.469+02:002010-06-24T07:01:40.469+02:00Yes Kai, news are always welcome. Thanks, Reinhold...Yes Kai, news are always welcome. Thanks, Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-36945435432662041892010-06-23T21:31:26.720+02:002010-06-23T21:31:26.720+02:00So then my guess was true: the mistake was the wro...So then my guess was true: the mistake was the wrong mixing order.<br />I think i'm going to try caffenol-h again on an apx 100 anyway, just to see if it makes a significant difference or not.<br />If you're interested, i can let you know the results when they're done.<br />Thanks for your assistance, keep up your great work!<br /><br />Best regards<br /><br />KaiAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-37423785409375666342010-06-23T00:28:13.705+02:002010-06-23T00:28:13.705+02:00Hello Kai,
it is important, in which order you ad...Hello Kai,<br /><br />it <b>is</b> important, in which order you add the things. Always start with the soda, then add the Vit-C. The ascorbic acid <b>must</b> be transformed to ascobate first, CO2-bubbles indicate the process, wait til the bubbles have disappeared. After that ( about 2 minutes), add the coffee. This is a must.<br /><br />LG Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-26922625895622017072010-06-22T15:27:55.342+02:002010-06-22T15:27:55.342+02:00Hello Reinhard,
so here's the recipe for the c...Hello Reinhard,<br />so here's the recipe for the caffenol-c i use:<br /><br />250 mL of tap water<br />2.5 tsp of soda<br />1/4 tsp of vitamin c<br />4 tsp of instant coffee.<br /><br />I admit, it's by far not as mathematically correct as your recipe, but as i said it worked fine with apx 100 in the past. The grain was a bit strong, so i wanted to try it with the KBr additive.<br />After a bit of re-thinking, i'm quite sure now what went wrong: usually i first dissolve the soda completely, then add the vitamin-c, then the coffee. This time, i mixed all the powders together first and then added the water. Maybe that wrong order made my caffenol not-working.<br /><br />Cheers<br /><br />KaiAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-89597473336421213802010-06-20T13:54:35.633+02:002010-06-20T13:54:35.633+02:00Hello Kai, your math is correct for 1g/l KBr, so m...Hello Kai, your math is correct for 1g/l KBr, so maybe the "standard" Caffenol-C you used might not work with it. I guess you mean the common 8/4/2/1-recipe and not my Caffenol-C-M? Maybe too much KBr for this weaker recipe. <br /><br />I don't think that APX100 needs any KBr at all, the results with Caffenol-C-M are brilliant.<br /><br />Best regards - Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-37475814437880739132010-06-19T20:46:45.508+02:002010-06-19T20:46:45.508+02:00Hi Reinhold,
have you any experience on using caf...Hi Reinhold,<br /><br />have you any experience on using caffenol-h as developer for medium-speed films? Becaus i tried it today on a agfa apx 100 and the results are very bad. The film's got almost no blackening, it looks like it has been badly underexposed (which it wasn't). I used 250 mL of standard-type caffenol-c, which worked fine with this film in the past, and added 7.5 mL of a solution of 33.4 g KBr in 1 L of distilled water. Developing time was 16 Minutes.<br />Cheers<br /><br />KaiAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-22753619831434103722010-05-27T03:18:25.241+02:002010-05-27T03:18:25.241+02:00Hi me and my fellows (we are studying fine arts, m...Hi me and my fellows (we are studying fine arts, more preciselly photography) will test this greate ideia! Thanks so much I guess this (if work)turn photo less expensive, particularly for us in Brazil, and other country in South America! <br />Thanks again brother!Carlos Zeuxis MSc BSc A.M.https://www.blogger.com/profile/09666251125743328312noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-25879411337999912010-05-24T03:09:08.718+02:002010-05-24T03:09:08.718+02:00Iodized salt may be an alternative. I have no reli...Iodized salt may be an alternative. I have no reliable data so far, so try at your own risk. It sometimes seems to work, sometimes fail. KBr works reliable. Cheers - Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-89618389730352573432010-05-24T03:03:53.532+02:002010-05-24T03:03:53.532+02:00I once used 2.5 g/l Borax and got completely blank...<b>I once used 2.5 g/l Borax and got completely blank negs. pH was 9.0. Borax is a very (!) strong buffer and seems to not to work as expected with Coffee and/or VitC. absolutely NO recommendation so far from me. Try at your own risk. If you get usable results anyway, please report.</b>imagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-71038962411136070962010-05-23T23:40:11.401+02:002010-05-23T23:40:11.401+02:00When I get back in to my lab I might try splitting...When I get back in to my lab I might try splitting the alkali. So instead of trying borax by itself maybe slightly reduce the sodium carbonate by around 1/8 to start and substitute it with the equivalent strength amount of borax. <br /><br />Since I wont be able to test this for this for a week or so here is my adjustment If anyone here is feeling lucky.<br /><br />1 litre water<br />washing-soda 47.25 gramms<br />borax 27 gramms<br />vitamin-C 16 gramms<br />coffee 40 gramms<br />bromide soultion 32ml<br /><br />-Kylekylehttps://www.blogger.com/profile/14870809164001465402noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-24670181377945004872010-05-23T22:05:54.787+02:002010-05-23T22:05:54.787+02:00Just a thought.. What about using iodized sodium c...Just a thought.. What about using iodized sodium chloride, ordinary table salt, instead of hard to get KBr? Or am i thinking wrong here..<br /><br />-MagnusAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-51991320059032049272010-05-23T14:27:14.031+02:002010-05-23T14:27:14.031+02:00Hi Carlos,
I see some good shadow detail but a ma...Hi Carlos,<br /><br />I see some good shadow detail but a massive loss of contrast in the bottom left corner. Strange.<br /><br />Also regular BW films may be better suitable for high grade photography than CN films.<br /><br />Best regards - Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-86096615003089459152010-05-22T10:13:53.701+02:002010-05-22T10:13:53.701+02:00Dear Reinhold,
I used Fujicolor 100, in Caffenol...Dear Reinhold, <br /><br />I used Fujicolor 100, in Caffenol-C, 18min, 20º.<br /><br />It got surprisingly sharp, but didn't get detail in the shadows. i was not very creative and apologise for using an old camera for subject, such as you, but those numbers are so small and lost into the neg that it realy shows what I mean with "surprisingly".<br /><br />D200, used for copy the neg, contributed with the grain.<br /><br />Here is the ink, hope you enjoy.<br /><br />http://imagio2009.blogspot.com/2010/05/royer-foto-nikon-fm3a-fujicolor-100.html<br /><br />Chears!<br /><br />CarlosCarlos de los Santoshttps://www.blogger.com/profile/03614478426305308767noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-26089764723625472332010-05-20T11:12:49.142+02:002010-05-20T11:12:49.142+02:00Hello Tom,
I feel honoured by your kind comment. ...Hello Tom,<br /><br />I feel honoured by your kind comment. Thank you very much. During my web research I of course came across your highly respected work. I was quite lazy concerning darkroom prints the last couple of months and did a lot of hybrid work, developing film in coffee and improving my scanning skills. <br /><br />For wet prints I prefer "regular" developers, because of the much longer shelf live, economic reasons and I don't like the brown stain so much for most of my images. But "never say never".<br /><br />Best regards from Heidelberg/Germany - Reinhold/imagesfrugalesimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-76816221117530624772010-05-20T05:46:18.385+02:002010-05-20T05:46:18.385+02:00Wonderful work here... I don't know if you'...Wonderful work here... I don't know if you're interested in the print side of things, but I have done a fair amount of work with Caffenol as a paper developer. Depending on your recipe and the paper involved, Caffenol can do just about anything you want a print developer to do. If you want to read about it, my work (now a couple of years old) is here:<br />http://sites.google.com/site/tomovertonimages/caffenol<br />Or if it seems to be going another direction from your work, feel free to ignore this.Tom Overtonhttp://sites.google.com/site/tomovertonimages/caffenolnoreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-16215152451918641462010-05-19T02:38:42.304+02:002010-05-19T02:38:42.304+02:00Hi kyle,
no bad idea, but needs a lot of adjustme...Hi kyle,<br /><br />no bad idea, but needs a lot of adjustments. Very long dev times and my first trials were extremely underdeveloped.<br /><br />Cheers - Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-84048145197400628192010-05-18T20:26:25.020+02:002010-05-18T20:26:25.020+02:00I just had a thought..
What if you replace the so...I just had a thought..<br /><br />What if you replace the sodium carbonate with borax. Borax is available in health food stores in the US. Its lower contrast and produces finer grain than sodium carbonate. Borax is used in Diafine. Or sodium metaborate which is between the two in contrast and grain.kylehttps://www.blogger.com/profile/14870809164001465402noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-37363945242060437962010-05-18T06:12:09.126+02:002010-05-18T06:12:09.126+02:00Thanks for writing about Caffenol-C, your blog is ...Thanks for writing about Caffenol-C, your blog is very interesting!Curioblogmanhttps://www.blogger.com/profile/05061911434882523388noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-45280779583278579432010-05-15T15:46:20.202+02:002010-05-15T15:46:20.202+02:00Hi kyle,
please write again when you did it. Any ...Hi kyle,<br /><br />please write again when you did it. Any support is appreciated. <br /><br />Thank you - Reinholdimagesfrugaleshttps://www.blogger.com/profile/16601551090153453277noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-26848126672986738832010-05-15T03:29:51.781+02:002010-05-15T03:29:51.781+02:00hmmm...I might try this with tmax 400
thanks agai...hmmm...I might try this with tmax 400<br /><br />thanks againkylehttps://www.blogger.com/profile/14870809164001465402noreply@blogger.comtag:blogger.com,1999:blog-1038963912631739676.post-65741222263530632622010-05-14T09:08:14.745+02:002010-05-14T09:08:14.745+02:00Dear Reinhold! for months I was thinking of develo...Dear Reinhold! for months I was thinking of developing films again, then I found some people using coffee... well, after 20 years, (and after seeing your results) I'm going back to the lab! Thank you for your inspiring work! coffee rules!Carlos de los Santoshttps://www.blogger.com/profile/03614478426305308767noreply@blogger.com