Video about lens production...

LucisPictor · Posted: Thu Nov 22, 2007 4:50 pm Post subject: Video about lens production...

I am not sure if this link has been posted before:
http://www.youtube.com/watch?v=X7_wL0ZZi6k
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Lenses in use: Asahi Pentax: 2.8/28;3.5/35;1.4/50;1.7/50;2.8/105;3.5/135;28-80 | Canon (AF):1.8/50;17-85;75-300 | Former GDR: CZJ Flek 4/20; Pentacon 3.5/30; Pentaflex 1.8/50; CZJ 2.8/50; CZJ 4/135; Pentacon 4/200 | Fujinon: 43-75 | Hanimex: 3.5/23; 4/100;80-200 | Hoya: 25-42;80-205 | Leica: Elmarit-R 2.8/35 | Mamiya: 1.8/55 | Minolta: 1.7/50 | Nikkor: 2.8/24;2/35;2/50;1.2/55;1.8/85;3.5/135 | West German: Ludwig 2.9/50; Meyer 2.8/100; Will 4.5/105; Schneider 3.5/135;Enna 3.5/135; Zeiss 4/135;Isco 4/135; Enna 4.5/240 | Olympus: 3.5/28;1.4/50;3.5/135 | Rikenon: 1.7/50;35-70 | Rollei/Voigtländer: 1.4/55;1.8/50 | Russian: Peleng3.5/8; Zenitar2.8/16; MIR2.8/37; Volna2.8/50; Industar2.8/50; Industar3.5/50; Industar3.5/5cm; Helios2/50; Helios2/58; MIR38 3.5/65; Volna2.8/80; Jupiter2/85; Kaleinar2.8/100;Tair2.8/135; Jupiter3.5/135; Jupiter4/135; Telear3.5/200; Jupiter4/200; Tair4.5/300;RF: Jupiter2.8/35;Industar2.8/53 | Sigma: 28-85;28-105(AF);17-70(AF) | Soligor: 28-105;35-200;70-220 | Tamron: 2.5/24;2.5/135;60-300;70-210 | Tokina: 28-105;80-200;12-24(AF);70-210(AF) | Vivitar: 3.5/17;2/24;2/28;2.5/28;2.8/28 | Yashica: 2/5cm | Other Japanese: Cosina3.8/20; Albinar2.8/28; Porst1.8/35; Beroflex 8/500; Spiratone28-200; Maginon70-210
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Attila · Joined: 24 Feb 2007 Posts: 16006 Location: Budapest,Hungary

Many thanks!
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Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
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Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
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Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro Elmar,2.8/90 Elmarit last version
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Orio · Joined: 24 Feb 2007 Posts: 12528 Location: West Emilia

Really instructional video, Carsten. Thank you very much!!

I suspect that for low end Autofocus lenses of today, many of these processes may be automated in chains. Which I think can be an explanation why so many autofocus lenses owners are angry about the copy variations and quality control Wink

This video also makes it clear why building care and quality control are so important. And why even prestigious firms like Carl Zeiss Jena have had difficult moments with quality control in the economical difficult situation of last years of DDR: manual lens building is a work that really requires technicians that are expert, qualified, and well motivated.
It's not like building an everyday object.

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Farside · Joined: 01 Sep 2007 Posts: 1863 Location: Ireland

Wow. That was excellent. JML seemed vaguely familiar, but on looking up their website I see it probably wasn't from camera lenses, so must have been some other piece of optical equipment I've encountered.
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Himself · Joined: 01 Mar 2007 Posts: 600 Location: Montreal

Excellent video.
What intrigues me is that somewhere at the end it says that they need 6 weeks to build a lens.
It seems to much to me. It would cost a fortune taht lens.

Orio · Joined: 24 Feb 2007 Posts: 12528 Location: West Emilia

impactcr · Joined: 04 Nov 2007 Posts: 59 Location: Belgrade / Serbia

here is another nice video

http://www.canon.com/camera-museum/tech/l_plant/f_index.html
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pentax k110d + 18-55 kit lens / pentax SMC M 50mm f1.7 / pentacon auto 135mm f2.8 MC / pentacon auto 200mm f4 MC / RMC tokina 35-135 / zeiss tessar 50mm f2.8

Orio · Joined: 24 Feb 2007 Posts: 12528 Location: West Emilia

Thanks for another nice link!
It seems that today, glass creation is 90% done by machines (except for very large glasses), glass polishing is completely done by machines, and the only process that remains manual is the lens assembling.

BTW what is that yucky fluorite in the middle of a tele lens Evil or Very Mad

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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
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www.oriofoto.net

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impactcr · Joined: 04 Nov 2007 Posts: 59 Location: Belgrade / Serbia

I dont know if all lenses are assembled by hand,those were after all canon L lenses...i doubt cheap plastic lenses are assembled the same way...maybe im wrong,just assuming Smile

Anyhow,very interesting topic,at least for me,i always liked to see how lenses are made,so if anyone have some interesting link it would be great to share.

Smile

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pentax k110d + 18-55 kit lens / pentax SMC M 50mm f1.7 / pentacon auto 135mm f2.8 MC / pentacon auto 200mm f4 MC / RMC tokina 35-135 / zeiss tessar 50mm f2.8

Orio · Joined: 24 Feb 2007 Posts: 12528 Location: West Emilia

Yes, if L lenses are mostly made by machines, we can just imagine how cheap lenses might be made Evil or Very Mad

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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
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www.oriofoto.net

Read list of equipment HERE

Flor27 · Joined: 13 Sep 2007 Posts: 1196 Location: Paris, France

hacksawbob · Joined: 28 Feb 2007 Posts: 1061 Location: LANCS UK

right now I've seen how its done I'm going to start making some from beer glass bottoms and toilet roll tubes! Canon look out! Laughing

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Farside · Joined: 01 Sep 2007 Posts: 1863 Location: Ireland

Orio · Joined: 24 Feb 2007 Posts: 12528 Location: West Emilia

tanheis · Joined: 05 Sep 2007 Posts: 187 Location: Finland

Here is about Canons lens making...
It's all japanese Sad

http://www.youtube.com/watch?v=ZUKjAk8Q-x0&feature=related
http://www.youtube.com/watch?v=IzDPSi--3bg&feature=related
http://www.youtube.com/watch?v=_IdeWzbQ_hA&feature=related

I would of hoped at least some subtitles Very Happy

Short video about Zeiss
http://www.youtube.com/watch?v=AZatFrB7I64&feature=related
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