How It's Made: Optical Lenses

[MrDjpatres]

Please know someone name of the song playing 5:20? beautiful and soothing

[tammyz10]

Much prefer barnsey doing the voiceover in the UK.

[TheBandScanner]

Very surprised at the sections showing percision handlers without hair nets.

[jannoelparedes]

wow...... so perfect 

[dx80cruiser]

No cheap and easy way to make a high quality lens.

[nonosh]

@dx80cruiser Indeed.

[msaliciathetiger]

I like the background music! Really catchy.

[sameermhatre1975]

therefore the cost is very high.

the work of making a optical lens and assembly is highly skillful. 

[vitruvian8807]

$1000 for 2.2 pounds? Now wonder SLR lenses are so expensive.

[alfonsocuiti]

I'm sure crappy 18-55's are made in half an hour, by two or three machines =P

[GeezerRay]

Nice.

"2.2 pounds"? Can't Americans figure out what a kilogram is yet?

[nonosh]

@GeezerRay This episode was most likely narrated with a script that accomodates the ordinary TV viewers in the United States. Metric standards are not used here much outside of academia; I suppose Americans can't immediately infer how a kilogram feels while looking at a particular object on the screen.

[calebp9503]

@GeezerRay Silly canadian's ... when will you figure out it's pronounced zee, no zed!

[pyrobombs]

@GeezerRay As a 15 year old who has to use metric measurments for science un school, etc, I can say that I agree. It is such a simple, and exact system that I am amazed people here don't use it outside of school. Such a shame.

[Aragiss]

@GeezerRay Yeah I hate the damn Imperial units. I mean the whole world uses metric, they're much more convenient and scientific. Why do those idiots still use those archaic measurement units?!

[nonosh]

@Aragiss Metric follows a very logical hierarchy indeed, but it may pose as a challenge if, one day, students are to reference past governmental reports/document for their research. Many years of scientific documentation in our public sector have rendered the U.S. system ubiquitous. Well, I suppose this just means that we should leave it to the motivated independent organizations to advance our scientific dreams (pardon my fallacious judgment).

[TheMarkNessMonster]

@Aragiss 'We idiots' use both just fine, in different applications. I find it troubling that no other country is smart enough to use both, so they stick to the simplistic metric system.

[Aragiss]

@TheMarkNessMonster Well if more units you have the better it is... Then lets use many other units. Metric is too simple! Let's complicate things shall we?! There, I now name my nick "Aragiss" as a unit equal to 7,675 kilograms!

[TheMarkNessMonster]

@Aragiss It's not my fault you can't grasp a second system of measurements, you must not have had a very good math teacher.

[TheMarkNessMonster]

@Aragiss Unfortunately for you, science includes complicated systems of measurements. Too stupid for science? Try religion!

[Aragiss]

@TheMarkNessMonster Don't tell me about science, science doesn't need multiple unit systems. The thing that makes metric superior is that imperial units don't multiply and divide regularly. 1 foot is 12 inches, 1 yard is 3 feet, 1 mile is 5 thousand-something feet!

Let's check out metrics, 1 km = 1000 m, 1m = 100cm, 1cm = 10mm. We have 10 fingers, our numerical system is decimal, its retarded to use anything but a system in which units multiply and divide by 10...

[TheMarkNessMonster]

@Aragiss I'm really enjoying the fact that you just can't comprehend a system of measurements invented by a british king.

[Aragiss]

@TheMarkNessMonster Whatever man, you don't seem to understand my point here. Just keep using your archaic methods of measurement and I'll use mine.

[TheMarkNessMonster]

@Aragiss I understand perfectly, and I am able to understand and apply both fluently, which is more than I can say for yourself.

[TheMarkNessMonster]

@Aragiss One last thing, calling Imperial measurements archaic by comparison to metric measurements is like calling cubits archaic in comparison to bushels, which is a measurement still used today. Metric was invented in April 1795, so by any standard, neither is any less archaic. Enjoy not understanding my archaic measuring system, while I enjoy using both archaic measuring systems. Also, science has MANY systems of msmts. I mean, you wouldn't measure electricity in cm, now would you?

[Aragiss]

@TheMarkNessMonster I don't know when they were made. By "archaic" I meant, obsolete. Whatever, this discussion has got way too long and i'm rather bored with it. BB

[Matt49768]

@GeezerRay I can.

[cadamcross]

@GeezerRay Why should Americans "figure out" what a kilogram is? A unit is just an arbitrarily agreed upon constant. Saying the kilogram is superior to the pound is just brainless snobbery.

[megaflunky]

@GeezerRay We don't need to we don't use the metric system here

[GeezerRay]

@megaflunky Um, that's the point. The US is (essentially) the only country that doesn't. US industry does, though, in order to be competitive. Well, it would if there WAS a US industry.

[Gunner3210]

@GeezerRay Or at least they should have mentioned the per pound price.

[Lifeintakes]

Interesting but I don't buy some of the information in this presentation or think it is really old. I am especially skeptical about it taking 6 weeks to create a lens, I bet it is much, much, quicker and mostly automated.

[LiHoLiHo]

@Lifeintakes

I think your not seeing the whole picture, the line of production its form by hundreds of personnel around the globe, its not just one person doing one lens.

One does a small part of the lenses the whole day, so imagine he/she can work on a few dozens in one day.

So he works "everyday" on one part,and then move to another person WHO its already working on another dozens by day. but the whole production of one lens its done in 6 weeks but a few hundreds came every day.

:D

[nonosh]

@GodWillem Now try your second guess: menthol, or full-flavored?

[timistof]

Aargh! doesn't anybody hear this high-pitched whine?

[DudeGuyNimNim]

wow i never knew t would be that interesting 0.o

[DeaderNBetter]

i wanna see them make those huge lenses that are like as long as your arm

[BassPounderX]

Wow

[nonosh]

Thank you for the views and comments, everybody! I'm glad to see YouTube users having so much interest in this video.

[drahmedelbatran]

@nonosh what he's saying is "very interesting", and it's very interesting indeed. Thanks for the video

[nonosh]

@drahmedelbatran Cheers!

[Alynight66]

this looks like a lot of work ... sheeesh . like who invented this stuff you know ... you really have to have the intelligence to come up with these things .

[XionXi]

Interesting stuff. I've always admired manufacturers. The average person doesn't even think about this sort of thing.

[nonosh]

@XionXi Yeah, engineers are brilliant people with amazing minds.

[jhmoonman]

Pretty good info!!!

[hrmarinkovic]

was he/she having a condoms on fingers? (@ 5:41)

[BlaineDeschain]

Bending light, always fun.

[nonosh]

I did not take it, actually. It was on an officially licensed DVD from Glendale Community College (California). My professor had me use it for a research project. I ripped the video and posted it on YouTube for educational purposes. I do not believe that this is stealing; this is a way to spread knowledge across the World Wide Web.

[alejandroomi]

Muy Interesante

[lln003]

why don't you guys contact the parent company that makes this show and ask?

i'm sure they'll give you the track without any narration.

[teddymacpherson]

Shame... it sounded better when Lynne Adams was narrating it (Canadian Version). I agree the music is pretty much EPIC, but does someone have a link to the Canadian version?

[wallsjoshua]

daMN I NEED THIS INSTRUMENTAL

[pepper96734]

I saw this episode today (Sept. 14, 2008) and I totally agree on the music. It was f*cking awesome. I could imagine the artist on drugs and sitting down with a keyboard and computer.

[aera6413]

Saw this episode a couple of days ago. Does anyone know who the music artist is?

[IDowney1988]

I believe the artist is Kevin Tighe.