The Chemistry of Kodak Film - Smarter Every Day 275-C

[@SmarterEveryDay2]

Can we all agree that Dr. Jeff Hansen is a pretty amazing tour guide? If you feel like this content is worth your time and you'd like to enable me to keep making stuff like this, please consider supporting on Patreon. www.patreon.com/smartereveryday . If you enjoy the channel, that's the single best way to help. Thank you!

[@BlackHawkBricks]

He is the best!!

[@Mikewhocheeesehairy]

Any person with the knowledge and passion like Jeff has must be such a blessing to be around. Thanks for these videos, this is one of my favorite series so far.

[@thomashenden71]

Please bring @Kodak a great "THANK YOU" from us millions and millions film fans, this is outright so fascinating, finally we were able to see how film really is made and not the least, the quality control which has some kind of a NASA level to it. These times, it is so important to see that science really works and give us wonderful, colourful results, in the case of physical film. And thank you for giving us this! As you say, many times: AWESOME!!!

[@danielbrowniel]

thankyou for showing this my grandpa worked here, never knew what it was like, it's incredible.

[@VEE727]

I hope he loses weight. He's gasping for breath just standing around. I want this kind man to stick around for very long

[@jeremiahrohr3655]

Dustin, having worked in a Kodak coating room back in the 80's, you did a great job of getting into the inner sanctum of this amazing industry. My father who worked for Kodak for over 40 year always told me, Kodak is not a camera or picture company it is a chemical and chemical processing company in an absolutely niche market of photography. Unfortunately, since they were basically run by really good chemical engineers, they completely failed to recognize the digital revolution even though their own research department invented the digital camera, much to their demise. I have always thought a really good, in-depth documentary series on the 130 years of Kodak would be a fascinating insight into a piece of American ingenuity. And I'm talking about not just the development of the company, but all of its products, research and genius around the technology of chemical photography as well as the other successes and failures of this business. While you have done a great job of showing how this technology works, you have only scratched the surface of this industry and all the things that this company was involved in. There is a wealth of technology and knowledge inside the wall of Eastman Kodak that a vast majority of people have no clue of. Stay curious and I hope you do more on this subject.

[@8__vv__8]

Someone call Ken Burns

[@vasilis8208]

Have you always used the multi-layer laminar flow procedure for applying the colour emulsion, or did you once apply the layers individually, one after the other?

[@renebohmer3206]

Dear Jeremia, do you know how many Rolls of Film Kodak produces, yearly, these days? Im trying to find out for some time now. Just cant find any sources :-)

[@jeejbeej]

It's also sad that they didn't recognize the need to diversify and use their chemical expertise to get into other markets. Fujifilm did and still is a massive company, with film and even digital photography just being a fraction of what they make money on.

[@grn1]

Alec of Technology Connections has done a few videos talking about film and history though not nearly to the extent he's covered RCA or toasters. The history of Kodak would certainly be right up his alley though.

[@Nagria2112]

as someone from industry its crazy how much depth he shows. obviously he doesnt share trade secrets but he is very very close to it and i love it. high industry is amazing - i work in pharma.

[@covodex516]

same here, just in the diagnostical branch of a pharma giant. I'm a chemical technician doing lab scale synthesis of peptides. I can't imagine someone with a camera being allowed to film our most important processes, thats just not something our branch likes in general it seems.

[@bubbly6379]

@@covodex516 sus

[@covodex516]

@@bubbly6379 super sus but they pay me well

[@bubbly6379]

@@covodex516 on the point of high industry though, as an electrician it's crazy how much access we get to very very sensitive stuff without any checkups. I've been around machine shops where the companies do government/big company contracts and I'm given nothing resembling an NDA or anything, nor warned to not use a camera. Also we get keys for entire buildings without a second guess. Do y'all keep better tabs? Because I'd recommend it lmao

[@VEE727]

Yeah I would think most of what he's telling would be a "trade secret". I'm surprised he was allowed to share so much. Good for us

[@boomfiziks]

As a chemistry teacher, this tickles my brain. I do a chemical photo lab (turn their T-shirts into a photographic film) and this will be a great springboard into this lab and topics.

[@EkiToji]

Probably a great way to introduce the discussion of surfactants and the differences between liposomes and micelles. Not to mention talk of interstitial defects and all that fun jazz.

[@buuh7592]

do you have a video or something about that t-shirt to photo film experiment? that sounds awwesome!

[@tannenman]

@@buuh7592 Also interested!

[@thestandardaccount]

Please elaborate on the shirt film thing! Sounds awesome

[@boomfiziks]

@@buuh7592 I’m not sure what happened, but apparently my previous reply didn’t go through. So let me try again. To find the lab, do a search for “Flinn scientific “. Once on their site, search for “blueprint t-shirt”. We first practiced making prints on white paper towels, seeing what worked and didn’t work, before moving onto T-shirts. One issue that arose was that either certain detergents or water would wash away the color, leaving behind a pale yellow image. I think this year we are going to try bleach T-shirts, following the procedures from the KZbin channel of “The king of random”. Do a search for “bleach shirts” on that channel.

[@mdesignz]

After watching this, I'm amazed that a roll of film doesn't cost $1,000. Thank you for producing this. I'm becoming a patron today!

[@Redisia]

I am more or less surprised they did not branch off. I worked [not a chemical tech myself, IT related is what i did] in a chemical multinational [22 countries] company and know that they actually branched of into something new right before i left. Kodak has equal (or more) level skilled chemists there... they should expand their horizons if they havent already.

[@davidg5898]

The level of access you were granted is impressive. Kudos to Dr. Jeff for imparting so much knowledge!

[@Furudal]

Well considering the navy let him board an active duty nuclear submarine, still impressive but three or four levels down from that.

[@ChillGuy511]

​@@Furudal that was basically for recruitment campaign... that's why the navy gave access...

[@ywfbi]

@@ChillGuy511 Yeah, I would bet Dustin got a dollar or two for showing them in a positive light.

[@ChillGuy511]

@@ywfbi I don't think so... Do they do that? The experience he got and the video he got to make would be enough ig...

[@ywfbi]

@@ChillGuy511 I do not know for sure. But the DOD pays big money to Hollywood for positive movies. "Hollywood military propaganda" returns a lot of results.

[@gbasilveira]

The amount of thought and design before this factory construction is amazing. Thank you and kodak team for sharing such knowledge

[@ECM398]

As a materials chemistry student who just took a class in solid state chemistry, watching jeff trying to explain core concepts without going way into the weeds was hilarious. Theres so much interesting stuff to cover i bet he could talk for hours about it :D

[@davidlanford]

This actually puts the price of a roll of film into perspective!

[@bigskybob]

you can tell the depth of knowledge Dr Hansen has with how measured his responses are. Just like you said, he takes you to the edge of your knowledge, shows you there's even more that you don't understand, then explains what you can understand in a meaningful way. What an educator!

[@dooterino]

I love this guy, I'd love to spend a day talking emulsions with him, maybe I could plant the seed to get Aerochrome back in production lmao

[@FookFish]

ikr!

[@bubbly6379]

I wish aerochrome existed 😭

[@bentuttle]

He isnt why they dont make Aerochrome...

[@programagor]

The Infrared laser used for QC nowadays as well as the infrared cameras would expose it, though...

[@stratocactus]

@@programagor I guess it's not impossible to turn off the IR laser and IR cameras if they wanted to produce a batch of Aerochrome. They would have to make more manual QC after full production, with higher QC time and labour, and also more risks of bad batch (cause no control at earlier steps of production). So in the end more expensive film. But can't be more expensive than the 100$ people ask for a roll on eBay lol

[@alexaguilera8563]

I'm a secondary school student and I'm doing my final year project on the chemistry of photographic film. I've found it quite difficult to find information about this subject and so I wanted to thank the Smarter Every Day crew for making this video as it has really cleared things up for me. Thanks for making us smarter everyday.

[@photoshopace]

Toured Kodak PArk in 1967 as a photo student in Rochester. I certainly was not in depth like your amazing videos. Jeff Hansen is a rock star for us with interest in how film works. This is all fantastic and make me appreciate the 10-15,000 sheets of 4x5 and 8x10 film my studio went thru every year. Kodak would sent densitometry and test sheets from a few full batches of film and we would choose the best one for our type of work. They they would cut whatever we mix of sheet sizes we needed. A whole new appreciation for the people of Kodak.

[@viscache1]

As a lifelong film photography devotee I have been totally geeking out on this series. My career was as a physicist but my passion has always been photography. I can read the technical manuals and take a fair picture and God sent me a wife some 40 years ago that doesn’t really care about the technical stuff but she is a brilliant artist with any camera! Doesn’t matter…I LOVE knowing how stuff works! We are all so proud of you, Dustin, when Jeff mentioned ‘Laminar Flow’ you didn’t drop everything and go all geek out! This makes me wonder who can possibly take a ‘Jeff Hansen’s’ position when he retires? The level of professionalism and amazing dedication is getting harder and harder to replace. Dedicated team players are so rare now.

[@andreask.654]

I am a photography professional, I grew up with film and understand all of the basic principles, but... Gosh, I had no idea! These facilities are exceeding my imagination of film production by far. Thank you so much for this deep dive. Thanks to Kodak and special thanks to Jeff!

[@Fish_nipples1998]

Honestly it's amazing. Just how much goes into a roll of film and how absolutely precise they have to be when they're manufacturing that much of it. Honestly surprised that each role of film doesn't cost $50+... A car can impact someone's life greatly or even take a life and automotive manufacturers a lot of times don't even have that level of precision. Truly, astonishing.

[@rca6268]

My mom was a film chemist at Kodak many years ago. Literally grew up hearing about this stuff on a daily basis, but you finally cemented all of it in a way that makes sense to me! Thanks!

[@Warhorse26]

I've lived in Rochester for 26 years and never knew how much went into the making of Kodak film. Thanks so much Destin for visiting my city and this deep dive into the chemistry and all the other videos of how this stuff works!

[@bigskybob]

Destin, the re-watchability factor of your videos is off-the-charts. I find myself coming back again and again to your videos which I enjoy the most. The Deep Dive on submarines is fantastic. I've watched the first Kodak video easily 10x and still learn something new each time I watch it. Thank you for the fantastic content. Happy to be a Patron of yours, Destin.

[@jonahbrame7874]

The logistics of this facility is insane. Every time Jeff tried to show a hint of the scale of the complexity of the operation, my brain started to extrapolate and immediately got overwhelmed. This series has been an absolute pleasure to jump down the rabbit hole in.

[@nedj10]

The Kodak series is interesting, because Eastman-Kodak invented most of these processes. Which gives a reference point to look at how other countries' film companies, gained the ability to also make photographic film..

[@user-wc6vb3fn1s]

Well, Kodak didn't invent chromogenic monopack, it is Agfa's invention.

[@steveskouson9620]

My father was a semiconductor engineer. (Chemical engineer, really.) I learned as a wee youngster, about electrons and holes, in a P-N junction. (At a small memory manufacturer, in Mt View Ca. I met Gordon Moore there, one Saturday. I was 12.) I never knew that film had the same process! steve

[@Rockin-Roland]

As a Rochestarian and the child of a Software engineer that worked for Kodak it’s really cool to see this but also really sad to see what a shadow of a company Kodak is of it’s former glory. The story of Kodak and the city it built is amazing.

[@mzaite]

I had no idea that the silver halide light chemistry is a kind of doped solid state system like a semiconductor using free electrons and “holes”. It’s like half photovoltaic and half photosynthesis light reactions and half charged coupled device. In GOO!

[@sloppydog4831]

Yep. It is like photo sensitive microelectronics. A photon hit it and leaves a hole, and then this electron is capture somewhere down the line. The hole is the latent image, for what I understood it.

[@natefunk1]

@GenericUser That's quantum physics baby!

[@andrewpowers1655]

Literally one of those episodes where learning is fun and I can’t get enough of it.

[@exploresouthwest]

You can see why Kodak basically makes all the color film stocks for everybody, it's amazing how much work is done to make film. Also explains why Fuji is spinning down their factory. It's going to take a lot of demand for film to convince these companies that it's still worth all the effort.

[@stephenbenner4353]

I worked in a photo developing lab in my early 20s and I remember that Kodak film tended to emphasize reds and yellows while Fuji film emphasized greens and blues. (It is notable that their product marketing emphasizes these color differences). I don’t know if I could still tell, but looking at the prints of a full roll of film, I used to be able to recognize Fuji vs. Kodak. I tended to use Fuji because it was less expensive and I tended toward landscape photography which had a lot of greens (plants) and blues (sky), but I’ve always had a special place for Kodak because my great grandmother’s uncle was George Eastman who founded Kodak.

[@xwingfighter999]

I'm a master's student in chemistry and I learned some very cool details about the photochemistry. Dr. Hansen was amazing!

[@O2CP]

For those wondering why there's no Black pigment in CMY camera film, but there is Black in CMYK printing, it's because: 1. it actually saves a lot of colored ink in printing. By adding black ink in printing (actually dark grey ink...), you can cut down on the three other colored inks if you ever want to reach a black result (instead of going 100% Yellow, 100% Magenta and 100% Cyan, you can go 100% Black and maybe ~10% of each other inks, which makes a lot less ink used). 2. the color balance is much easier to do and adjust after the fact. While in photography, the photo detectors are created long before the picture is chosen and taken, in printing, you know exactly what you're going to print out before you start pouring ink in the printer. to the point where actually, not all printing is done with CMYK inks. If you know you're going to print out pages where there only two colors (say Orange and Green) then why not just put Orange and Green inks in your printing machine ? And we do. 3. bleach can't selectively wash out "black" silver traces were there's few and keep it in where there's a lot. You either remove all of the silver or none of it, so you have to make do with the usual subtractive color blending of Cyan minus Magenta minus Yellow to achieve black.

[@petevenuti7355]

It's the ruthenium and iridium washed out with the silver?

[@ThomasGabrielsen]

I just had to pause it to write this: I love listening to people that love their job and that are proud of what they're making and talk about it with such passion as Jeff does. I'm 54 minutes in now and I'm kind of sad it's only 13 minutes left. To me this is probably the best video you've made, Destin. You ask the questions I would've asked and you try to understand what Jeff explains using your own words, which helps me to understand it better too. I had absolutely no idea that film is so complex. Well done!

[@huntingstill]

I am so impressed with Jeff's knowledge of all of their processes. He seems like an all-around great guy as well!

[@jackestes44]

I love seeing someone passionate about this work give a tour. They normally take longer because they want to get you to feel just as excited as they are about the topic.

[@han5vk]

Around the 18 minute mark, you mention Bayer filters of digital cameras and how they don't actually capture all colors at the same spot. However there are also digital cameras that work just like the film does, passing light through the sensor die with different wavelength sensitivity at different depths -- most notably, the Foveon X3 sensor.

[@brianbarrett2487]

Yes...a 1200-2500$ digi camera vs a 10-30$ roll of film

[@han5vk]

@@brianbarrett2487 Way to be completely beside the point.

[@rickkwitkoski1976]

@@brianbarrett2487 Really??? How much did that film camera/lens cost back when? And the film is an ongoing cost. You are comparing two very different items and have NOT brought in all the parameters.

[@matthewjohnson1891]

Yes! Fujifilm still uses rhat tech in there newer cameras too.

[@AlexanderSylchuk]

Well actually film doesn´t capture all he colours at the same spot, if the light hits a crystal on some upper layer it either bounces off or gives it´s energy to the silver depending on the wavelength. It´s more that there´s no defined square pattern as in bayer filter but the colour overlap is rather random.

[@MrQwint22]

What's absolutely amazing about all of this is that it is the result of almost 200 years of cutting edge physics and chemistry building up on one another; giants standing upon the shoulders of giants. It really isn't all that surprising, I suppose, that film is still chugging along in the digital age when you think about it like that.

[@soranuareane]

I'd watch the full interview. I don't care how many hours it is. I can't get enough of this guy.

[@arthurlamy5535]

This is insane. How much effort and expertise goes towards these little strips.

[@C00LGUYM4X1]

Dr. Hansen did a good job of explaining the functional effect of the chemistry even though he didn't get too far into the band theory of the silver halide. Of course, the end product relies on all the other parts of the film in a much more substantial way so I understand the simplification. Very good video yet again. 👌

[@MeriaDuck]

And a lot of this discovered by experimentation way before physics and chemistry knew about the quantum mechanics behind photon absorption. Love this 'outtake' of an hour of chemistry geekery.

[@NerrdHerrd01]

Wow. I don’t think I’ll retain most of this information but it was so enjoyable to listen to. This series inspired me to buy an old film camera and I love it. I still go to every thrift store in town to track down film cameras that others throw out. It’s a hobby I didn’t know I had until I learned about it. This is what the internet is for!

[@Awesomepotamus]

I'd like to thank Jeff and his team for taking the time to show us such a fascinating process and sharing their knowledge with us.

[@mikewinings4120]

No wonder film is so expensive, love the series, looking forward to seeing more,thanks Dustin

[@Scrizati]

This was extraordinary. What an insight in to the process

[@benn125m]

I would have never imagined how much is going on before one can take a "simple" photo.. my mind is blown..

[@TheIdeanator]

The materials engineering here is absolutely rad!

[@analogshooter]

Now it makes a little more sense that a film costs 5-12 bucks a roll. Great series on how film is made. A little more complicated than expected i must say. It will sure make me appreciate each roll even more.

[@MakeSomething]

I loved this. You were right, he was great at taking the explanations to the edge of my comprehension. Also, the cameraperson in me kept saying this must have been so difficult to shoot!

[@shadow7037932]

That's how you know they are good at their job.

[@michaele1201]

Jeff has been waiting to have this conversation for years with someone interested and smart enough to stay engaged and understand. Awesome day for both of you!! I worked as a Field Engineer for Intel during constructon of one of their wafer plants. Much of this is very similar and brings back memories.

[@versedi]

I love how Jeff is passionate about the process himself.

[@hobokenjoe30]

Man I miss Kodak. Growing up in the shadows of Ridge Ave this company was the life force of the city. Heck even working in a few of Kodak's buildings as an engineer, even though it wasn't a Kodak company, was like a life goal for me.

[@bobstay1]

I'd just like to say, thank you so much to all the people involved in making this series of videos: Destin and your guys for taking the time and trouble, Jeff Hansen for your time and knowledge (both the science and navigating around this huge plant!). All the technicians who appeared and talked about their jobs, and the nameless people behind the scenes at Kodak who decided to allow this to be seen by the masses on KZbin. Thank you all. It's fascinating, and enlightening, and mindboggling, and wonderful that such material can be found on the internet in this age of 90 second attention spans.

[@kylegellner8687]

Hearing about "latent image" and "reciprocity failure" took me way back, as did the D log e curves. I started with B&W photography back in 1969 when I was in high school, and have loved the smell of Kodafix ever since. Thank you, Dr. Jeff Hansen and Dr. Hollis Todd (wherever you are)!

[@stevewalston7089]

This is American manufacturing at its finest ... I'm glad we still make a few things. Jeff and others are absolutely indispensable but hopefully bringing other up into their level. I've worked for way too many companies that thought everything could just be crated up and sent elsewhere with instructions and it would all work the same. Tribal knowledge should not be discounted in terms of how valuable it is. Somethings just can not be documented and translated with great success if any. A production facility like this is pretty incredible to see, so many are gone now.

[@turnbullelectronics2229]

Justin. Thanks for doing this. I worked for Toledo Scale from 1980 to 1990. I have seen many industrial products manufactured. I installed and maintained Batch system scales for companies like EI DuPont, Reichold chemical, Marian Laboratories, Bayre Laboratories, Caterpillar Tractor, and a multitude or other companies. However, nothing compares to the Chemistry of creating film in your video. I was an avid photographer in high school and developed many rolls of film and prints for our yearbook. I never realized how much chemistry was going on when doing this even though our darkroom was adjacent to the chemistry lab. Mind blowing. John Turnbull

[@KiddsockTV]

I can understand that whole confusion about the different layers of CMY and how does cyan "light" get through the yellow and magenta. BUT it is just photons. JUST PHOTONS! (Put that on a TShirt!) Could you imagine how busy this place was 25, 30, 40, year ago. Amazing!!

[@juanjchong]

For anyone that remembers your semiconductor physics, it sounds a LOT like the chemical and material processes are very similar. Thank you @Smarter Every Day for capturing and sharing this! Heck, the sensitivity curve Jeff showed is nearly identical to a typical IV (conductivity) curve!

[@clinty51]

Hey Destin, I watch a lot of your content with both great respect and awe at the information you convey. Firstly to to hear you say Wow with your understanding of technical subjects is epic. The best and biggest takeaway from your series on Kodak, and this video with Jeff, is bigger than the subject. This is a company that literally works to provide a medium to record human history. These super skilled individuals, from the raw material delivery driver to packaging, to produce a final product for the next potential photographic record of some time in future history. I wholly hope that the resurgence of film media continues to grow. Thank you, and Kodak for this tremendous dive into the complex wizardry that enable us to look forward to the shots we record, rather than rely on the gratuitous reward of instant digital pictures.

[@octorok7412]

I think what makes videos like this so great are how good the questions are that Destin asks. Like I know I wouldn't ask such questions, if any at all. I'd just listen and try to process it myself. But Destin asks questions constantly that look to fully understand what was said and it helps with grasping what is being explained by these people he is talking to. I really appreciate that.

[@SplicesAndCelluloid]

Jeff is friggin awesome! I can't imagine how much fun you had with this trip.

[@DJ_Tasha_Nicole]

25 minutes in and completely fascinated by just how much Dr Hansen has studied and can share and it's not even out of the show and tell! Fantastic series

[@Luzgar]

This is why Love KZbin, things like this are only possible here, this is why I'm studying engineering. If you have some more, I'm here for it all day long.

[@alexbulowski]

I've been into analogue photography for 10 years now, and I've been developing my own film for 4 years now. This is the most amazing and most into depth video on how analogue film works I have ever seen. As you point out, theories m there's very little information on the internet, and barely any videos, expect for one dutch film from the 50s 😅 Thank you very much for bringing this to KZbin!

[@jima1135]

I grew up less than an hour from this factory complex and always marveled at its size. It is great to see what has actually been going on in there. Thanks Destin and, of course, Dr. Jeff!

[@Ben_R4mZ]

The fact that I know fully understand how this process works is a testament to this guys teaching skills, especially his ability to freaking complex subject down into something a general audience will be able to understand.

[@paulkesaulya7997]

I’d learn anything from Jeff! I could only understand parts of what they’re talking about, but im three videos in and I can’t stop. This is blowing my mind.

[@scanadian4735]

This series has been amazing, as well as you and Jeff I don’t know why but this was better than watching an action film and kept me on the edge of my seat the hole time. I allso do not think iv ever absorbed this much information in such a short time at any point in my life. I love it and keep up the good work

[@0Rookie0]

This series is blowing me away more than I thought it could. Dr. Hansen is incredible! My tertiary thought, however, is who keeps track of the parts and diagrams of the facility. I'd imagine it would be quite the challenge to replicate or reverse-engineer any of the film making process. There has to be tons and tons of records for a place as complex AND complicated as this. Imagine being a new maintenance tech coming in to fix or replace something. Without help, I don't think you could find the correct place and part! I imagine there are only a few people ever with a strong overall understanding of this incredible assembly line.

[@OfficialAgentGaming]

As someone that is really into photography and collecting old film equipment I wondered why these companies that are still around such as Polaroid don't start to re make some of their old film. Now I completely understand why only certain film is produced and so expensive. Thank you for giving us the chance to see this and thank you Kodak for what you do.

[@jasperdegrood]

I'm am 7:26 seconds in! And teers of jo are filling my eyes. Jeff is an educator like no one else, not demanding you to learn but making you want to learn more and deep dive in the beauty of this chemistry. Thank you Destin.

[@alexz1104]

Man this Kodak series has been such a wild ride. What an amazing peek behind the curtain thank you for making this happen!

[@MikeBramm]

This place it awesome and they must keep it operational. If sales drop, they must slow down to 1 day a week or a few days a month, but they have to keep it operational. If they were to ever go out of business, then it would cost another company A LOT of money to build their own facility and learn how to do all this stuff.

[@AlaskaSkidood]

Dr Hansen is a great teacher, but you're also a great student. Asking great questions, repeating back what you have understood. Thank you for sharing - This is awesome!

[@motodiaries8204]

What a fantastic series! I had absolutely no idea how sophisticated the process of making film was. The industrial and scientific development that Kodak has done is astonishing. It’s very clear from this that if we lose Kodak or other film manufacturers we will never see film again. No boutique manufacturer could ever match this sophistication. I also won’t ever think that film is overpriced again!

[@MrGlotzTV]

I was surprised how much goes into making a film (like I didn't expect them layering different sizes of crystals for light intensity). Jeff is great at explaining!

[@Juni_Dingo]

Why do I feel that they only make 127 emulsions because their software stores the emulsion ID as a signed 8-bit integer? x3 Jokes aside, this was an amazing insight into the workings (and making!) of the emulsions, I could listen to Dr. Hansen all day...Thank you!

[@paulgibbs6759]

I thought the same thing!

[@blueline15]

There is so much knowledge in Jeff’s head. He truly knows the chemistry inside and out. Incredible.

[@Bikelessmanklr650]

I can't tell you how much this video helped me understand the Kodak plant processes. I am going to visit the plant next week for work, and this set of videos saved me so much time in learning the process. Youre explanations were amazing! Great job! I hope to meet Jeff as well. I'll thank him again for his excellent tour.

[@miinyoo]

There really is no substitute for nearly a hundred years of experience with Kodak. From the science to the methodology, and sheer complexity of variables, it reminds me more of semiconductor fabrication than anything else. Stupendously fascinating especially when you're a big fan of film footage as the raw stock to shoot dramatic productions. I am always thankful to the purists in the film industry who stick to their guns. For all the flaws film has in image reproduction, there is just something natural about them and it all boils down to what this guy is teaching us. Just incredible.

[@derekfloyd398]

This video is probably my favorite of yours so far. Getting a deep dive into this process is so fascinating. Coming from the controls and instrumentation industry, I was giddy the whole timing seeing all of the transmitters, valves, hmi, and such. Those flowmeters at the end were all Coriolis flow meter. If you were able to do a whole channel like this on in-depth process in manufacturing plants I would watch every single one! I appreciate your enthusiasm for engineering and science!!

[@zaccaira4649]

Holy moly 3 smarter every day videos in one day.

[@nickjohnson410]

This is amazing. Going out of your way to add this to a readily accessible public record is out right win for humanity. Thank You!

[@paolociccone]

Thank you so very much for making this series of videos.I watched all of them. I've been going back to film gradually and every day is filled with more wonders about film but this series about Kodak had been such an eye opener. We are extremely lucky to have such valuable documentary about the magic and art of film. This is very inspiring. I cannot thank you enough for making this series and I'm extremely thankful to Kodak for being so open and let us look inside their magic kingdom.

[@N8TRC]

I have used cameras for over 60 years considering myself an engineer I thought I knew a lot about photography I used to develop color but boy have you opened my eyes thank you Dustin

[@human_brian]

I said this on the main video that goes with this one but I am super glad I'm a patron of this channel because the amount of super high quality content is just staggering. Keep up the good work, Destin.

[@one-man-band]

Your videos are excellent and your work on education is highly appreciated. Thank you for staying curious and sharing with us.

[@kzil]

Absolutely amazing video and Jeff is incredible. Please don't stop doing in-depth stuff like this!

[@aengusmacnaughton1375]

My parents came from Rochester, NY -- and one of my uncles worked his entire life with Kodak. I can hear the "Upstate" accent with Dr. Hansen -- great to know that this knowledge is not being lost!

[@c.augustin]

The Foveon sensor works somewhat similar to color film, having its color sensitive layers on top of each other. There are still cameras around using this sensor (only by Sigma, as it seems), but it is not in widespread use.

[@Rom2Serge]

This gentleman is amazing. As a photographer but more as a film enthusiast i would give so much to have his understanding of film chemistry.

[@jfwfreo]

This is probably THE best explanation of how the chemistry of film actually works anywhere on the internet.

[@draco_2727]

This series has been AMAZING!!! and Jeff I have no words for him other than to thank him for being such an awesome host.

[@TrevorDyck]

This whole series is so incredible. Thanks Destin for putting this together to share and thanks to everyone at Kodak for sharing their knowledge and insights.

[@dvdsarescary]

This is unbelievably cool, love how clearly this guy explains this extremely complicated process.

[@gregheisenburg7781]

What a great guy, makes me hate most my teachers growing up who were not passionate about learning. Could listen to this guy for hours lol . Thanks Dustin, and shout out to Dr. Jeff, dudes a legend.

[@mcb187]

I just bought an RB67 to take MASSIVE pictures. About 4x as big as 35mm. As you can imagine, I love film photography. And I also like chemistry. It is so cool to see how the film works, what goes into it, and to know that there are still folks keeping film going. I love the process, I love slowing down and thinking about a shot. I love the sound of the fully mechanical shutter. It’s incredibly satisfying to put some film in a development tank, develop it, and then magically see images appear. And when I get my darkroom up and running, it will be magical watching the paper develop. Destin, thank you for sharing this amazing insight into Kodak, and film in general. And Dr. Hansen is definitely someone I would love to talk to. Maybe one day I’ll see if I can get a tour of Kodak, and of course, take lots of pictures!

[@Cone_A_]

If you want to learn more about film (Destin or any viewer) Technology Connections had a good series on film that taught me about silver halide before I got here.

[@8paolo96]

As a chemist, this video is gold for me, thanks a lot Destin to give me the chance to learn this stuff I wouldn't otherwise!

[@joshgretzky1005]

Man I wish I knew you were on plant would have invited you by where I work at the Kodak Park Fire Department for lunch!

[@davidquirk8097]

Thank you so much for this video series and a huge thank you to Jeff for sharing his knowledge and passion. It is truly a privilege to be allowed into this sort of facility and to have a person with so much knowledge and the ability to share an incredibly technical process in terms that we can all understand.

[@nickdambrosia2304]

I’ve lived in Rochester my whole life, love photography and love science. This video is the intersection of my niche interests

[@jum5238]

I didn't understand a lot of the contents of this video, but still gave it a thumbs up for the presentation (and kudos to recognizing how he was teaching you!), but I read many of the comments below from many disciplines, and the enlightenment is so infectious! This is an excellent presentation! Truly becoming "smarter every day"!

[@HexerPsy]

I got a background in radiation / radioactivity and I love learning about computer chip manufacturing process -- with that background, this was good to follow :D Photo tech is amazing! We also use the photon - hole principle in solid state detectors for x-ray imaging.

[@EkiToji]

Coming from a semiconductor background myself I was loving his talk on the solid state physics even if he kept it very basic. Being only particularly familiar with AgI as a fast ion conductor I'd for some reason never made the connection between that and film development though, perhaps since the silver iodide isn't BCC except at elevated temperature. In hindsight it makes perfect sense using dopants to create traps in the way you try to completely avoid in silicon. Been years since I've thought about Frenkel defects too.

[@Colbasaurus23]

This is honestly mind blowing. Have not been this engaged in learning about a topic for a long time!