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calvin grier
เข้าร่วมเมื่อ 9 ต.ค. 2011
DAS For Carbon Printing- Diazidostilbene Sensitizer
See thewetprint.com/das-for-carbon-printing/ for more information
4,4′-Diazidostilbene-2,2′-disulfonic Acid Disodium Salt Tetrahydrate CAS 2718-90-3, also known as DAS, is used as a less toxic alternative to dichromate in carbon, collotype, photogravure, casien, and PVA printing. Besides being less toxic, the most important advantage of
DAS over dichromate is stability. Dichromate-sensitized
emulsions suffer from the dark reaction before exposure
and the continuing action of light after exposure. These
reactions cause errors in calibration.
4,4′-Diazidostilbene-2,2′-disulfonic Acid Disodium Salt Tetrahydrate CAS 2718-90-3, also known as DAS, is used as a less toxic alternative to dichromate in carbon, collotype, photogravure, casien, and PVA printing. Besides being less toxic, the most important advantage of
DAS over dichromate is stability. Dichromate-sensitized
emulsions suffer from the dark reaction before exposure
and the continuing action of light after exposure. These
reactions cause errors in calibration.
มุมมอง: 1 395
วีดีโอ
PrintMaker’s Friend Coating
มุมมอง 2.5Kปีที่แล้ว
Tips for coating with PrintMaker’s Friend. More instructions can be found here- www.printmakersfriend.com/instructions
Building up Tone in Layers with PrintMaker's Friend
มุมมอง 1.4Kปีที่แล้ว
A short description of how we can build up a full tonal scale using PrintMaker’s Friend, multiple layers, and one development.
PrintMaker's Friend- The Non-toxic Alternative to Gum Bichromate
มุมมอง 6Kปีที่แล้ว
The Printmaker's Friend is a non-toxic replacement for gum and dichromate. It will hopefully go on sale on Amazon in the US and www.printmakersfriend.com in Spain and the rest of the world in 2024.
PrintMaker's Friend- Zoom Presentation
มุมมอง 6Kปีที่แล้ว
The Printmaker's Friend is a non-toxic replacement for gum and dichromate. It will hopefully go on sale on Amazon in the US and www.printmakersfriend.com in Spain and the rest of the world in 2024.
Modern Gum Bichromate Printing
มุมมอง 17K3 ปีที่แล้ว
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-workshop/ And the pigments- thewetprint.com/en/pigments/ Photograph by Allan Jen...
Making a Full Color Gum Bichromate Print
มุมมอง 16K3 ปีที่แล้ว
This video follows how to make a color print with the gum bichromate process. The pigments used in this video can be purchased here- www.thewetprint.com/pigments Complete instructions on how to make this print are found here- thewetprint.com/gum/ The guide used to calibrate the print can be seen here- thewetprint.com/en/digital-workshop/
Color Photograph From Dirt
มุมมอง 21K4 ปีที่แล้ว
This video is about using earth pigments to create a color photograph using the 19th century color carbon transfer process. The photograph printed in this video was taken by Louise Dahl-Wolfe for a 1959 issue of Vogue, and reprinted by the Wet Print with permission from Condé Nast Publishing. If you are interested in learning more about the carbon transfer process visit www.thewetprint.com. If ...
Peony Double Transfer
มุมมอง 1.1K4 ปีที่แล้ว
This is a double transfer carbon print, which can be purchased here- thewetprint.com/product/peony-double/
Lily Matte
มุมมอง 6414 ปีที่แล้ว
This is a triple transfer color carbon print made with made with 5 different layers: cyan, magenta, yellow, black, and burnt sienna. 10 negatives were used to create a very continuous tone image with an incredible amount of detail.
Badlands
มุมมอง 7904 ปีที่แล้ว
This is a triple transfer color carbon print made with six layers and 10 negatives. Besides the standard CMYK colors, there's an extra layer of burnt Sienna, and a gloss layer which you can see in the little tree. This print is available for purchase here- thewetprint.com/?post_type=product&p=2115&preview=true
Color Carbon Print River Stones
มุมมอง 1.2K4 ปีที่แล้ว
This is a triple transfer color carbon print made with cyan, magenta, yellow, black, iron oxide, and gloss layers, separated between 10 negatives. This print can be purchased here- thewetprint.com/product/river-stones/ To learn more about the carbon transfer process, see this video. th-cam.com/video/JTMVdq1mPhA/w-d-xo.html
Carbon Transfer Print Peony.
มุมมอง 5064 ปีที่แล้ว
This is a triple transfer carbon print with a slight gloss layer in the shadows. There is one copy of this print that can be purchased here- thewetprint.com/product/peony/ To see more or less how this print was made, see this video- th-cam.com/video/JTMVdq1mPhA/w-d-xo.html.
Color Carbon Print under 10x loupe
มุมมอง 9035 ปีที่แล้ว
This is a 6 layer triple transfer carbon print under a 10x loupe. For a reference of how magnified this print is, the clock measures 10mm in diameter. You can see a comparison of how smooth and detailed the carbon print is compared to an inkjet print here- pB45kKxko2_F/
Color Carbon Print of Hubble's Deep Field
มุมมอง 2.9K5 ปีที่แล้ว
Color Carbon Print of Hubble's Deep Field
How It's Made: Carbon Transfer Print on Gold Leaf
มุมมอง 10K6 ปีที่แล้ว
How It's Made: Carbon Transfer Print on Gold Leaf
Carbon Transfer Tips and Tricks: PET Backing
มุมมอง 2.6K7 ปีที่แล้ว
Carbon Transfer Tips and Tricks: PET Backing
Carbon Transfer Tips and Tricks: Free Distilled Water
มุมมอง 1.1K7 ปีที่แล้ว
Carbon Transfer Tips and Tricks: Free Distilled Water
Carbon Transfer Tips and Tricks: RainX Your Table
มุมมอง 2.5K7 ปีที่แล้ว
Carbon Transfer Tips and Tricks: RainX Your Table
Amazing process.
Is it bromoil? What’s the chemical?
Cool stuff !
Where did you purchase the pigments from?
thewetprint.com/shop/. Send me an email since the store is closed right now.
Isn’t the dirt just toning here basically?
Nope, the dirt is forming the color image. It's doing much more than just toning. It would be possible to make an image without a black layer, as one would make a CMY print. The black just makes it easier, and adds some more depth.
@@carbonprint i see. Thank you!
holy moly f... awesome need to try it :D
what is the difference in between gum bichromate and colour carbon print ? I am very interested to learn. thank you
Usually, but not always, color carbon is more precise and sharp, what we think of as straight photography. Likewise, gum lends itself more to a pictorialist style.
That's amazing. Great work. Where is it possible to learn this technic ? Thank you
I teach workshops, but the next one won't be until 2027 or maybe even later. A few of my students have gone on to teach workshops as well. You can contact either Michael Strickland, or Katayoun Dowlatashi.
Can you use gum dichromate to make a paper negative
It would be very difficult. I don't recommend it. Look into liquid silver emulsions.
Amazing!!! 👋👋
Amazing!! i just found your youtube channel ! Great work . I hope someday I can take your workshop. Thanks
Thank you :-)
amazing
😮 what?!
Worst printing process ever, totally not accessible to the general public. Even photogravure seems less painful than all these steps and calibration it takes to make this carbon transfer print and frankly, for any type of modern-straight photography a simple silver gelatin print would do, this is so unnecessary
Qué alegría verte otra vez por aquí! Cuídate mucho
Gracias :-)
Thanks Calvin. Glad to see you’re up and about again. Take care of yourself.
What’s the benefit of this process? Especially compared to traditional gelatin silver, darkroom prints or even quality rag paper and a quality pigment ink photo printer?
Compared to inkjet, it's like the difference between a chips-ahoy cookie and a homemade cookie. Even the best inkjet print looks terrible next to a carbon print. Silver prints can be very nice, but carbon prints still have a few advantages, namely: ability to print in color, more permanent, more options for paper, and a 3d quality that you just don't get from silver prints.
Thanks for making this. Would it be possible to use this as the sensitizer for carbon printing or to make something similar that could?
For carbon printing, you want to use CAS 2718-90-3. I sell it on www.thewetprint.com, and also on Amazon USA.
@@carbonprint DAS is still rather hazardous though right?
@@brucehorn7600 No, It’s almost non-toxic. I just wasn’t able to get non-toxic certification because there is very little data on it. But similar diazido compounds are very low toxicity or non-toxic. I would much rather use DAS than dichromate. However, that’s not the main reason why I use it. DAS is stable so calibration is a million times easier.
@@carbonprint Thanks Calvin. It is good to see your real world assessment of that. Looking at the data sheet for it makes it appear more hazardous. Good to know. There are many things that attract me to carbon printing for the type of photographs I make but the toxicity of dichromate is a deal killer for me. Nice to know there is an option that can be used with just normal PPE.
Fantastic video! Love the results. Huge respect for your skill and dedication. I printed a lot with cyanotype and gum in the past. Large 11x14 and 16x20 litho negatives, blown up from 35mm or 4x5 originals. I actually made color separations onto litho film and printed four color gum, or gum using cyanotype for the blue layer.
Bravo
Calvin, thanks for all your hard work. I used to make alt prints in the 80s and 90s but stopped when I developed autoimmune issues and environmental sensitivities. I also engaged in traditional fine art print making and appreciated over the years people's work to develop eco-friendly options to commercialize. It isn't easy, it often isn't commercially successful but sometimes lightning strikes and a product takes off. I'm hoping yours is around for a long while because I have plans...
Thanks. Yes, hopefully sales pick up. Right now I'm 13k euros in the red. It would be nice if there was more interest in non-toxic alternatives, especially since it's a lot easier to use.
@@carbonprint Ouch, you're at that painful stage. Well IMO printmaker's friend should become the next akua kolor since there seems to be a string parallel between the two products, marketing and stories. I shall not only give it a try for gum prints I'll experiment with it to see if it can be etched since I really want to print gum oil process and dont want to use dichromate.
Hi! I stumbled upon your video while researching gum printing, and I must say, I'm thoroughly captivated. As a complete novice in both gum printing and any classic printing techniques, I'm starting from the ground up in my learning journey. I have a quick question: Is a separate digital color negative required for color gum printing? If so, what steps should I take to create a color negative from a standard digital photo file? Would your book provide information on this as well? I hope my question doesn't sound too naive, but I'm genuinely curious and had to inquire. Thank you.
Thank you :-) You can use any type of negative with gum printing, but if you are starting with a digital file, you will probably make either inkjet or imagesetter negatives. For BW printing, only one negative is needed, but for color, at least three will be needed for cyan, magenta, and yellow. And yes, all of that is covered in the book.
@@carbonprint Thank you so much!
is this essentially a dye transfer print? looks beautiful!
No, it's a very different process. This uses pigments instead of dyes.
✨ *PromoSM*
Wow 🤩
Dear Calvin, This is a brilliant representation of the exposure method and layers. As always a genius in your field 🌷🪲. Taking that according to the demonstration, if we expose 4 layers, Does it mean we have 4 negatives as we did in various other methods ❓ namely- Highlight Light midtones Darker midtones And Shadow ❓ I'd love to hear. Thank you, i miss your studio! M.m
Thanks. This method is for continuous tone negatives. Just one negative. Very different from what we did with halftone negatives in the studio. Here you control the tonal separations through the exposure times instead of making separate negatives in photoshop.
When will I be able to buy Printmaker's Friend? Doesn't seem to be on the website yet...
www.printmakersfriend.com/shop
@@carbonprint Excellent!
In the meantime you can use diazo sensitizer like speedball and gelatin
It looks very much like a Carbro or a dye transfer, but I've never seen anything with that many steps. Result is beautiful.
Thank you :-)
when they say to explain like like they are 5
can't wait to try this once your first batch gets to amazon
Hi Calvin great way to explain it visually. Just a basic quiestion: in the second method ( succesive coatings and exposures with a single development in the end). Is the exposure of each layer done with the diffrent negative each time (with adjusted density) or the same negative for all layers?
I think it would need to be one negative otherwise you would have the same registration errors. By coating all this layers you increased the dynamic range of the paper. So if I understand correctly you would then also use a single negative with a wider dynamic range to perform a print.
If you are doing color prints with PMF what is the basic workflow?
Thank you. It's all done with the same continuous tone negative. See here- www.thewetprint.com/instructions
@@lhuhnphotography Yes, you could build up each color in layers. However, between each color, the print must be developed.
Ohhh now i get it! Same negative! But each layer would have a different concentration and a shortening exposure time. Now , what's the concentration dilution gradient ❓ Mm
THIS IS AMAZING!! I am a student at George Mason University and have been looking for alternative processes in the film photography world to be more environmentally conscious and this just made my day. I can't wait to buy this and try it out :)
Beautiful! This is art yall.
Thank you :-)
Undeniably one of the most beautiful things I’ve ever seen!
Thank you :-)
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.
You might find this book very helpful- thewetprint.com/gum/. It explains the whole process in great detail.
Hi! Can i know what paper did you use??
I think this print was on Arches 300g, but my favourite paper is Hahnemuhle Platinum Rag.
@@carbonprint can i use regular 300g watercolor paper? becouse i can't fined a glossy water color paper in our country....
@@johnli6736 Arches and HPR are not glossy. Some papers stain much more than others, they need to be treated or sized. I recommend this book- thewetprint.com/gum/
Sir can i interview you for some brief introduction about gum oil? This for my thesis. Under standing the process of gum oil printing. We need 3 person to interview for the thesis.
@@johnli6736 I've never made a gumoil print, so I'm probably not the best person to interview.
ok. I'm just blown away by your craftmanship. My prints look like dogshit compared to this, and I thought the were okay-ish 😅😂
Can’t wait to get some
Is this also a replacement for carbon transfer? Can you elaborate a little on that? Thanks
No, it's just for replacing the use of dichromate in gum printing. I use non-toxic DAS to replace dichromate in carbon printing. I'm putting together a group order if interested.
@@carbonprint thank you, I’m getting interested in contact printing but I’m nowhere near to actually trying it out yet. I understand the process is quite different compared to carbon transfer, but I was wondering if the final product could compare to carbon transfer as print quality goes.
@@s70cas7ic0 They can be very similar or very different. Depends on how you handle the process. Both can create high-quality prints. Carbon wins for resolution.
Sr. where did you learnt color theory?
Why photographers call any photosensitive mixture an "emulsion"? to my knowledge no photographic process uses an actual emulsion, they are usually solutions and suspensions.
It's just the name that stuck.
Wonderful!!!!!🎉
Fantastic work .. and most interesting to learn more. But Your webpage is not very interesting :-) Tried to se for workshops. Looking forward to see more
The website crashed. Take a look now. There's little information on workshops because they are all booked for this year, and I won't be offering them again for a while. The website is a work in progress.
Knowing nothing about this printing method, is this something I can do with a conventional enlarger and 35mm film?
In the last workshop a student brought a modified enlarger. He replaced the Lamp with a 100w UV LED. We were able to make a print with this.
Looks a little *too* good. Appears to lack the handmade look/charm of gum prints. But I'll be following the progress of your product and I wish you well! Back in the 1980s (and before, I guess), there was a product on the market called KwikPrint, which seemed to amount to gum prints in a bottle. I once had a bottle of black, but I believe that KwikPrint also came in process colors. Anyway, it was very convenient and less daunting than mixing chemistry for gum ptints, all of which is to say that you may have a winner on your hands with a product that allows for manipulation and control of prints, straight from the bottle, without the hurdle of grappling with toxic chemicals. I would think that Printmaker's Friend might be very popular with people who want to get a feel for alternative photographic processes, and for more experienced photogs who want fine control over their prints.
Jacquard makes a product called SolarFast which would be close in properties to KwikPrint. The problem is permanence. Dye-based processes are going to fade fast. You can use PMF to make prints that look identical to what you would consider a normal look for a gum print.
@@carbonprint Thanks for your response to my comment! I suppose that, among other variables, choice of paper/support would make a difference as far as the look of the final print. Your prints in the viddy look super detailed and saturated. Will PMF come in pre-mixed colors?
@@markcornelius8802 Yes, it will come in CMYK.
amazing video!! can we please get more details on what you did in the exposure stage of the project? thank you
Thanks. It's just a UV lamp. If you are wondering about exposure times, calibration, and things like that, I wrote two books. See www.thewetprint.com
Amazing work really that's great, I wanna ask you just if you would like to share it what kind of printer do use to print such a big negative, I would like to try it firstly a smaller size, but I'm curious about a printer and plastic foil negative, maybe for my future work. Thank you Calvin! Best Jan
Thanks. I use imagesetter negs made on a Kodak Avantra 44.
Excellent color balance. Carbon printing is so difficult.
I need that stuff.
Mad skills