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Modern Gum Bichromate Printing 

calvin grier
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Over the last four months I have been researching the gum bichromate process. This video overviews the results of that time. This is not an instructional video. Complete instructions on how to make these prints are found here- thewetprint.com/gum/
Here's a link to the book on calibration- thewetprint.com/en/digital-wo...
And the pigments- thewetprint.com/en/pigments/
Photograph by Allan Jenkins- www.allanjenkins.com/

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14 мар 2021

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Комментарии : 52   
@benjaminstorrier
@benjaminstorrier 2 года назад
Having made colour gums up to 1000mm x 750mm myself - I am just absolutely blown away by your registration on these prints. What a master you are :)
@jeffiscowCS
@jeffiscowCS 2 года назад
Yes!
@carbonprint
@carbonprint 2 года назад
I cover three registration systems for gum printing in the new book. You can see it here- www.thewetprint.com/gum
@thomastuorto9929
@thomastuorto9929 9 месяцев назад
Looks beautiful!
@hresto1
@hresto1 3 года назад
Always one of a kind. Real art!
@3moirai
@3moirai 3 года назад
Gorgeous gum prints!
@flatbrokefrank6482
@flatbrokefrank6482 Год назад
The contrast in your prints and the saturation is amazing - my best print so far, a colour print of my Granddaughter doesn't even come close - stay safe
@baronbrambeus
@baronbrambeus 3 года назад
Dude this is absolutely amazing, I can’t wait to read and study all the information on this. Your truly are a huge inspiration for me. Thank you. I have so many questions
@carbonprint
@carbonprint 3 года назад
Thanks :-)
@carbonprint
@carbonprint 2 года назад
Thanks for your interest in more information. The new book is published. You can see it here- www.thewetprint.com/gum
@cyanovandyke9897
@cyanovandyke9897 3 года назад
Technical excellence.
@mariod.9045
@mariod.9045 2 года назад
Simply wow...
@MrJimEckert
@MrJimEckert Год назад
Your work is stunning! You should look into Chiba process printing. It’s a pigment process based on gelatin and AFC and developed with dilute hydrogen peroxide. Similar to gum printing but generally non toxic.
@carbonprint
@carbonprint Год назад
Thanks. I talk about the Chiba process and other alternatives in the chapter on sensitizers in my book on gum printing.
@christophergio7424
@christophergio7424 3 года назад
Just amazinggg What your doing wirh alternative processes are mind-blowing. One thing i want to ask. You mentioned dichromate as a dangerous substance (which it totally is) but maybe you can share a more detailed video about the health and safety aspect of not just gum prints but other alternative processes as well? P.s. thx alot, your videos just keep getting better and more and more interesting! Really inspire me alot😁
@carbonprint
@carbonprint 3 года назад
Thank you! I'll keep your suggestion in mind for future videos.
@carbonprint
@carbonprint 2 года назад
I cover how to neutralize dichromates, and alternatives to gum and dichromate in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@Alex_Soldatov
@Alex_Soldatov 3 года назад
Awesome!
@richardwilliamsiv3778
@richardwilliamsiv3778 3 года назад
So each pigment layer has an isolation coat. That amazing, the results are amazing. I need a new adjective.
@carbonprint
@carbonprint 2 года назад
Correct, I cover how to apply clear coats in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@jeffiscowCS
@jeffiscowCS 2 года назад
The book out yet? I'm trying to make a change to this from the b&w print I've been doing in my dark room
@carbonprint
@carbonprint 2 года назад
Yes, the new book is published. You can download it here- www.thewetprint.com/gum
@thomastuorto9929
@thomastuorto9929 9 месяцев назад
I definitely like the Gum print better. I thought the blacks were darker on the inkjet print but the the darker areas on the gum showed more detail, textures & I guess more tonal values if I’m saying it rite. Pretty good vid. Hopefully one day you will be able to show you spraying all the layers. About 40 years ago I developed around 4 rolls of BW on my own. Strictly amateur with no dodging or burning or multiple exposures because didn’t know anything about it. So I told you that because guessing you sprayed the layers on & then exposed it to the light or dis it the other way around? Thank you for any replies.
@carbonprint
@carbonprint 9 месяцев назад
You might find this book very helpful- thewetprint.com/gum/. It explains the whole process in great detail.
@davidhatton7461
@davidhatton7461 3 года назад
Beautiful - though mysterious :)
@TheBruceAllen
@TheBruceAllen 3 года назад
Dude your amazing for doing this. How can i attend your workshop?
@carbonprint
@carbonprint 3 года назад
I don't teach gum printing specifically in my carbon workshops, but the processes are very similar, so I can explain the gum process as well. Send me an email at calvin.grier at gmail.com and I can put you on the waiting list. If you are coming from Europe, it's much easier to attend. Outside Europe is difficult because of Covid.
@carbonprint
@carbonprint 2 года назад
Everything I would teach in a workshop can be found in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@cool69bober
@cool69bober 3 года назад
Great print! So what about cleaning out the stain? Do you use something else besides metabisulphide? Or is it a company secret?
@carbonprint
@carbonprint 3 года назад
I'll be sharing my method over the next year with workshop attendees. Then next year I'll probably write a small book, and share my findings.
@3moirai
@3moirai 3 года назад
I would definitely be interested in taking a gum printing workshop if you offer it in the future.
@carbonprint
@carbonprint 3 года назад
@@3moirai I'll probably never give a gum workshop, but I might write a small book at some point. I teach carbon transfer workshops, my preferred printing method, just about every month.
@3moirai
@3moirai 3 года назад
Thanks for the reply @@carbonprint. I am a hobbyist alt photo process photographer with a primary focus on gum printing, who is always looking to learn new processes and up my game with gum printing. I was blown away by the depth of color from your pigments and process. Carbon printing looks a bit more challenging, and I would consider adding it to my repertoire of alt photo techniques. So it might be nice to take your workshop in the near future. In normal years, I usually go to Barcelona once a year, so a side trip to Valencia would be awesome once I can travel again. I'll keep an eye out for your book on gum in the interim.
@carbonprint
@carbonprint 2 года назад
​@@3moirai I cover how to avoid and remove sensitizer staining in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@benjaminvleugels5609
@benjaminvleugels5609 2 года назад
This is insane the colors are fantastic! I too really don't want to work with dichromate I understand you don't want to make gum prints anymore. Honestly I was freaking out when you showed the spray gun. I'm glad you don't actually spray the dichromate. People who spray dichromate are insane. I guess I don't have a say in who wins the Darwin awards. I'm now following a course on old photographic techniques and my teacher has found a substitute for the dichromate. Unfortunately we don't get to make gum prints this year, because there were to many lessons cut because of national holidays falling on the day of the lessons. I also have a question because you also seem to know a lot about old techniques. Is there a way to make iron based processes like cyanotype panchromatic? I'm asking because something like that could be a great substitute for silver. It would be a way more environmentally friendly way to make analog photographs.
@carbonprint
@carbonprint 2 года назад
Thank you. I'm sure there's a way to sensitize cyanotype to longer wavelengths, but I have no experience with that. Mike Ware would know.
@msbalboa1000
@msbalboa1000 2 года назад
I want to learn this technique from you please let me know how can this possible
@carbonprint
@carbonprint 2 года назад
I teach carbon transfer workshops, where you would learn 90% of what you need to know to make a print like this. For the other 10%, I can give you the recipes, profiles, curves, and describe the process to you. The next 10 day workshop is November 1-12th. See here for more information- www.thewetprint.com/workshops
@carbonprint
@carbonprint 2 года назад
Everything I would teach in a workshop can be found in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@SD_Alias
@SD_Alias 3 года назад
Just beautiful. I love all your printing results. How do you manage all the research, developing and testing over years and having time to earn a living? It is fantastic what you achieved. If corona is stopped and my business as a retoucher is running again, i would like to register for a course at your workshop…
@carbonprint
@carbonprint 3 года назад
Thank you very much :-) You are very welcome in Spain once the virus is controlled and the borders open up again.
@carbonprint
@carbonprint 2 года назад
Research and writing are not profitable, and I wouldn't be able to earn a living were it not for teaching, selling materials, and making prints for artists. Everything I would teach in a workshop can be found in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@SD_Alias
@SD_Alias 2 года назад
@@carbonprint Thank you Calvin. i will have a look at it. I hope you are fine. Here in Germany a lot of photoproductions suffer still from covid restrictions. So i wish you a lot of success in future…
@nikosmamalos
@nikosmamalos 3 года назад
Amazing does not describe enough! I would never imagine a gum print - inkjet comparison! Is gum print possible with das instead of bichromate?
@carbonprint
@carbonprint 3 года назад
Thanks. No, DAS doesn't crosslink gum. It's just the traditional sensitizer.
@carbonprint
@carbonprint 2 года назад
Alternatives to gum and dichromate can be found in the chapter on sensitizers in the new book on gum printing. You can see it here- www.thewetprint.com/gum
@nikosmamalos
@nikosmamalos 2 года назад
@@carbonprint I don't know what is more amazing! That you came back to update after a year or that you actually found an alternative. Bravo and thank you!!!!
@carbonprint
@carbonprint 2 года назад
@@nikosmamalos I didn't find an acceptable non-toxic alternative to gum and dichromate, but if you are willing to move away from gum. I.e. use gelatin, casein, PVA, then there are non-toxic alternatives I describe in the book that will give the exact same results as a gum print. You wouldn't be able to tell the difference, and I even find the non-toxic alternatives easier to work with.
@IbarguengoytiaFotografo
@IbarguengoytiaFotografo 2 года назад
On 1:16 you say... "I use image xxxxx negatives, so there's a half tone print..." Please tell me what kind of half tone you use, I think that's what the technique rescues, otherwise it looks scary.
@carbonprint
@carbonprint 2 года назад
Imagesetter negatives- thewetprint.com/imagesetter-negatives/ I use an FM screen
@IbarguengoytiaFotografo
@IbarguengoytiaFotografo 2 года назад
@@carbonprint Thanks. Ok, I'll try to convert each channel to diffusion dither bitmap and make the negatives on a plotter to see if it improves the result. (I don't have access to the negative Imagesetter).
@carbonprint
@carbonprint 2 года назад
There are three chapters on halftone printing, controlling dot gain, and choosing screens in the new book on gum printing. You can see it here- www.thewetprint.com/gum
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