Kodak's Film Quality Control Process - Smarter Every Day 275-B 

pro tip the distance from one spot to the next can give you an idea of the size of the roller causing the issue ... if it is repeating ... I worked on production machines for a living. you have to change the way you look at color when CMYK is involved

But how many air filters does this facility use per month?

Fantastic clarification.

That it is... the difference is if things get past him and customers bring it up then it is an issue.

In software, we call this "blameless retrospectives". I'm so glad to see this in place in other industries.

This should really be the norm, especially in QC environments. But if this is integrated throughout the whole production line, I can promise you positive results. If there's follow through.

Yeah, so nice to hear and in general it seems to be a great place to work at and buy from.

That feeling when you look for replacement parts for a specialty instrument on eBay and find one with a tag on it showing your factory scrapped it years ago....stranger than fiction.

Jeff mentions the most important part after that; upgrading. Upgrading (or replacing) is eventually the only way to keep complex production lines like these running. Over the years I've seen production lines of different kinds being stopped and replaced, due to the fact that PLC-components, frequency and servo-drives and motors from the old days, and sometimes even sensors and other field components were too hard to reliably get by. The price tag on those older components was never an issue (downtime is more expensive) even though prices often went up like tenfold after the manufacturer stopped production of a specific range of PLCs or frequency drives, it was just plain availability of those components that eventually forced users to order a new line and scrap the old one. Rarely were those machines mechanically worn out, and that certainly never was a primary cause for their replacement.

​@@johnenglish8126 yeah it's just too bad that companies have to be forced to that point almost like on the edge of the cliff and then the coyote cuts it off and they don't fall and they still don't want to replace it. But on the other hand you have these companies that find that they're in a niche market so they can make it whatever they want it to cost and pushes it out of the realm of will just purchase it to the well maybe, we'll put in next year's budget, to do we absolutely have to? Then there's the repairability score or lack there of for some companies to be able to actually repair something because everything is proprietary we don't want you to look under the sheet....

I’ve see a video on RU-vid about this. Was hoping it would come up in conversation here.

Veritasium did one I think

Yea but then they took that information and used it as leverage to get funding

There was a problem in the computer industry for a while because a lot of ceramic materials (iirc) came from an area near a nuclear test sight and had been embedded with radioactive material (not just irradiated). The radioactive materials were gamma emitters meaning they emitted electromagnetic waves with a shorter wavelength/higher frequency than X-Rays. Gamma emitters are all over the place and while gamma is ionizing (meaning it can alter atomic structures) most gamma emitters don't produce enough to be harmful to humans (our bodies are actually designed to handle a good deal of ionizing radiation, especially from outside sources like the sun, using things like a layer of dead skin that absorbs/blocks most of it and special immune responses that quickly kill mutated cells or DNA). When electromagnetic waves hit a conductor they induce a small current, the higher the frequency/shorter the wavelength the smaller the conductor has to be, since gamma waves are particularly short they are able to create a current inside the gates of the transistors within the computer processors and memory (RAM), activating them even if they weren't supposed to be activated (gates are like switches, when you apply a small current to the gate it allows power to flow through the other 2 pins of a transistor). Normally the plastic or ceramic that encases the components would easily block such radiation, shorter wavelengths (with few exceptions*) have worse penetration through solid materials, that's why mmWave 5G needs so many repeaters to work and that's nowhere near the nanometer or picometer range of gamma. Of course since the ceramics themselves were contaminated that meant that the chips were actually getting blasted by the very material meant to protect them. *Some solid materials have small gaps that make it easier for certain wavelengths to travel through, quartz is a good example. That's also why we use quartz glass for (real) UV lights, normal glass blocks UV (UVC, X-Ray, and Gamma are all ionizing).

maybe they asked the store you bought the film in to send it to you?

@@xgozulx Good point! I don't remember now if I told them where I got it but that's the only possibility I can think of.

@@B3D5X That does make sense - you weren't happy with the result, so it was either them or the lab. I find it quite reassuring that this means they gave your lab a grilling.

@@goldcd I actually developed it myself but the other roll I developed at the same time came out fine. So either it WAS my fault somehow (though I've never had the same issue before or since) or it was the film somehow. Either way, however they got my info, they erred on the side of making me a happy customer. And I was. I gave them the batch code numbers and all that but never heard what came of the investigation.

Well just having a Top Secret security clearance doesn't get you onto a nuclear submarine. Being a respected & professional videographer with a TS gets you there. Getting a TS is an involved process for sure but they hand them out like candy both in the military and to contractors. I had one in the Army to become a platoon level armorer, ya know what mine was used for more than anything else? Getting the mail from battalion so dude's didn't have to wait until the end of the day to get their mail. LOL

I’d love to see that!

I agree, an integrated paper mill is an amazingly complex process.

Yes, that would be amazing. Need more in-depth manufacturing tours with Destin.

I worked in lithography before for a company Kodak sold to..... that was a super interesting process! Now I work right around the corner and make film at Kodak lol

Was it me or did Destin find this either utterly boring or didn't understand a single thing about this and just started to make fun of it by filming Jeff through the device? Kinda weird the way he responded to it.

@@MartinH81 Pretty sure that's just you dude. He seemed totally fine to me.

Why is black represented with a K?

@@MattH-wg7ou to designate it different from blue. If you do the two letter versions they are BL and BK. They just shorten the BK to K.

I was for some reason struggling at first on the yellow magneto cyan, then he held up the RGB filter and it clicked in my head, inverted colors.

Finding the job you were meant for is pretty important! :)

Did you ask if you could go into the B&W department before you headed out?

Maybe it was the Shrek family?

I work there now and my mind got blown wide open when I first started working there at how much actually goes into it

I'm just guessing, but if its IR sensitive, wouldn't that mean it is not sensitive to most visible wavelengths? You would then use something like a sodium bulb or a laser to get one of those wavelengths and scan with that.

@@thekodanator Well, as far as I know (and had one time hands-on experience), they do sensitive to visible light too, at least the B&W ones. These films are just normal B&W film, but over sensitive to IR (usually, films are over sensitive to UV, that's why there are plenty of UV filters for camera). They were meant to use for aerial photo reconnaissance or traffic surveillance cameras, because IR can punch through fog and haze, makes photos clearer. Even today, Ilford in UK, and the factory in Belgium that produces film for Rollei, still makes this kind of B&W film. If you use these B&W films without IR filter, the photos you'll get are just simply normally B&W photos. Only when you use in combination with the IR filter, which will cut out the visible light (up to what wavelengths it rated for), then the photos will come out completely different. On the other hands, if you use the IR filter with the standard films, the photos will be super underexposed, or not exposed at all. Actually, some compact cameras read the DX code (the bar code on the film cannisters that tell camera what speed are they) with IR scanner instead of electrical contacts, could cause some film stocks to fog up.

Anyway, technically, those B&W films I mentioned prior are "near infrared" sensitive, so the manufacturers could use even longer wavelengths infrared, maybe I guess? But there were films that sensitive well into infrared wavelengths like Efke IR820, so I'm not sure how they monitored production back in the day.

When IR films were manufactured, the scanners would have been turned off. I was told a different sampling pattern was employed to verify film quality for those types of film.

It's bouncing back! I read a recent story that said they're actually in demand for new workers because film is literally flying off the shelfs.

Leader rolls are about 5300/5600 feet long