The process of making a camera lens. The best optical equipment factory in Japan. 

Foarte profisional și calitatea maxima.

❤❤❤❤is amazing

I love how Sigma maximizes robotics for precision repeatability and (human crafts-men-women) to provide the highest possible quality at the lowest possible cost for said quality. The consumer really benefits here.

Why you thanks😹you giving money they not giving for free

​@@user-xd2vk5ez7fhahaha 😂😂😂

These are exactly my thoughts. The process is quite complex and the prices now look reasonable

this specific lens is 1,300 CAD

Ni yo

nah. You can get the same quality lenses for 2/3 or even 1/2 of the Japanese price when you get Sirui, Viltrox, or 7arrtisans

@@leetuu1474 most likely garbage and probable the reason i've never heard of these.

It worked: now I want to buy one.

@@eastbaystreet1242 indeed :D

_It's rare that a company actually provides such an insight into their production._ None of the really sensitive trade-secrety stuff, (for instance, the specifics of their lens coatings), can be gleaned from here. 😊

Information about the coatings or materials can be easily optained through materialanalyses for most products. Processtechnology is a well hidden secret for most factorys, and that's for a good reason, since often times the problem is not "what" to produce, but "how", process wise. So If you are familiar with processes of this kind you get quiet alot of information.

I'm a fan of Sigma lens too. They are such a beauty. Here's a like!

in Japan art is in everything they do, from archery and how they sit to making products like these. They seek perfection.

She is just filling / injecting the paint on the already engraved metal. She is not hand painting. Take it down a notch :D

Oh no, u ruined magic hahahaha​@@Bengalurean1

Not American soil 😂

mf thinks the japanese are magical elves

Yes and no-they don't do it freehand-if you go back and look at the "Before and After" shot (freeze frame it) you'll see that the numbers are engraved and the workers "just" lays in the paint. This however still requires a Good hand.

I have two Sony lenses that came with dust inside from the factory(probably zero affect on image quality), but my Sigma is spotless!

same thought here, quite incredible

@@taylorhickman84 Yeah I did notice the factory was a bit dusty in the first part of the video. Luckily you have no dust from your Sigma lens

@@taylorhickman84 jjjjjjjjjjjjjjjjjjjjjjjjjj jjjj i i i i i i i i ohi i i i i i o

seriously? shame on sony. I have several nikon lenses, the cheapest is 200$, the most expensive is 4000$. all of them came completely spotless, without even a single spec of dust inside. @@taylorhickman84 My only sigma lens (24 1.4) came with a permanent spot on the rear lens element. I didnt bother to return it because it doesnt matter to me but still

In the room at 7:12 in the video, it looks like they use compressed air to blow debris off the lens they are examining, onto an array of already-cleaned lenses. Maybe the lenses are cleaned for inspection and the lenses don't need to be clean for the next step.

残念ながら！ 私が購入したシグマ 2470F2.8 レンズは、まだ 2 ヶ月しか使用していないため、レンズ内にゴミが入っており、品質に疑問を感じます。

I just watched my Sigma 24-70 f2.8 lens get assembled. Simply incredible how the whole things starts from parts to a finished product. Love this video.

@@gmxi188Have you contacted Sigma Service? I‘m sure that they would take care of that, as you still have warranty on the lens.

@@EndoplasmicReticulum7 I contacted Sigma Shanghai, and they replied that dust in the lens would not affect the imaging, and that it could not be returned or exchanged. It could only be repaired, but the process would take 3 weeks. The gap between the current Japanese companies and the past is too big! !

it's old school methods

3 dollars, take it or leave it

Not really, I buy my lenses second hand anyway as they are too expensive new

Спасибо вам за ваш труд! Мне нравится пользоваться вашими линзами, у меня их три ! Скажите а кто поставляет оптическое стекло заводу? Спасибо.

Japan is a great country. Its businesses and government work for the benefit of its people. As a Chinese, I am very envious.❤

@@Woodlawn. China's development is tremendous. I'm Japanese, but I think there will come a time when Japan will import lenses made in China.

Greetings from Netherlands 🫶

​@@user-ut3tq7ww6yлучше у лейтца и КарЛ 😊 цейса.

better don't say it too loud...in present times everything going more expensive daily...

@@maxo1124 It's the end results of governments printing money out of thin air to keep up the welfare/warfare industrial complex going. This can only go on for so long before it ALL collapses like a house of cards, like all Ponzi schemes eventually collapse. Keep voting, I am sure things will change next time, LAMAO.

Chutttttt! 🤫🤫🤫🤫

​@@maxo1124😂

exactly 🤣@@maxo1124

I thought that too until I realise she is squirting ink into letter grooves already there. It looked too perfect to paint by hand.

Even so she must have very steady hands, I'm sure I couldn't do that. Y@@nivekov

It could be that they can perform these sophisticated handwork as they have a sensibility to manual operation.

Yo tuve dos lentes Sigma con problemas de hongos, y la compañía no se hizo responsable. Eran lentes sellados para el clima.

🗿

@@javi-m Los lentes sellados para el clima no quiere decir que sean anti hongos, eso es imposible. Los hongos salen porque los tienes en un clima humedo y oscuro por mucho tiempo.

После этого видео я окончательно решил купить 85mm 1.4 DN art FE...

не проще лес и нефть гнать на импорт

Рисует шкалу тупо руками.

There's a reason so many michelin starred restaurants are in Japan. When these people set their minds to something the dedication and attention to detail is impressive to say the least.

also, sadly, the Japanese people need to work a little less hard and start making some babies or else there will be no more Japanese people in several more generations.

obama care

しかもそこで一切傷をつけないというのが驚きでしかありません。

QUEM HABILITA- SE A CONSTRUIR UMA INDÚSTRIA DE LENTES NO BRASIL? ALTÍSSIMA TECNOLOGIA, QUE JUSTIFICA O PREÇO DE UMA LENTE, PRODUZIDA POR VERDADEIROS ARTESÃOS, COMO SE FOSSE UMA 💍 JÓIA.

Depends though. I have a somewhat older 35mm 1.4 lens from Sigma and it's considerably softer than recent 35mm lenses.

I have a bag full of art lenses. They are beautiful. Better than my Canons.

The new mounting systems changed the whole game, because lenses can now be mounted closer to the sensor, which means more sharpness and less corrections needed for the issues that arise from mounting the lens further from the sensor. So while lenses can be tack sharp even with the old mounting system, the fact is that the new mounting system is miles better for lens quality. This also means they don't have to craft lenses as high of quality as previously. So technically older lenses are crafted better, but they perform worse because of all the issues that arise from the mounting distance.

😮😢😂

Я тоже очень удивился тому, что маркировка на фокусе пишется от руки😊

Sigma очень хорошо себя зарекомендовала в последнее время. Но Tamron пытается сквозь пот и слезы приблизится к уровню Сигмы.

Кстати я не очень увидел разницу сигмы и родных объективов в съёмке.

亏是中国没兴趣，不然让镜头也变成白菜价

The letters are imprinted in the metal, the worker uses runny paint to fill them in. Still an unexpected hand job.

Not precise just impressing for non technical people 😊 Filling the engravings with paint is easy as excessive product can be wiped away by hand more effectively as a machine could do it.

@@erikdenhouter That last statement reminds me of my younger years...

@@krisiluttinen Something most can relate to, but mostly not in the workplace 📸

а целую смену им в резиновых перчатках работать приятно?

@@rf1nwtkd14 Не вижу связи. Причем здесь перчатки??

She was just filling in the paint on the embedded letters/numbers.

"just" does not pay it justice ... Look at the speed and no a single "mini spill" ... And repeat that thousand times .... @@yummm8775

just do it bro, start your own lens manufacturing company

WHat?@@Waldo-Manfred

You can be sure they had clear instructions on what could be filmed and what could not. They wern't giving much away on the lens grinding process.

как же хочется чтобы у нас был такой завод в России

@@SkeTchTM07 Разделяю.

@@SkeTchTM07 но никогда не будет уже.

Do you really think they test every lens before they leave the factory?

@@BigKelvParkNot these lenses. But more expensive ones are tested each one separately

You weren't doing that from before?! 😱

@@g00nther NOT SO MUCH

да, тоже думал, что этот процесс полностоью автоматизирован, а оказалось, что сотни человеческих рук в деле! :)

(As someone else mentioned already) The letters are already engraved. The manual work is only letting white paint flow into the recessed engraved letters. This still requires skill and good eye-hand coordination, but it isn't free-hand painting that you see here.

会津の人は凄いですね。

I agree!

This is the Japanese approach to high quality production.

台湾、中国製はもっと工業化されているらしいですが、人手を使わないと最終精度に差が出るそうです。これが日本の技術です

Same!

@@yamashin9971 I like your approach to high quality production. S Korea doe it very highly automated where Japanese hands show their skills. (from Germany)

У них они там стоят нормально. А попав в Россию, на них делают конские проценты

Я тоже в восторге! Теперь понимаю, почему хорошие объективы такие дорогие и стоят порой дороже камеры в несколько раз. Являюсь счастливым обладателем Sigma Art 18-35mm F1.8 для Никона. Вещь! Приятно и в руках держать и работать с ним.

@@takeyan5475 シグマさんはその意味では凄いですよね

Genauso ist es.

Согласен ! Японское качество - это сила 💪.