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Orio
Joined: 24 Feb 2007
Posts: 12691
Location: West Emilia
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 Posted: Mon Nov 19, 2007 7:03 pm Post subject: Quiz ! |
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Three questions, let's see who's good in replying right and don't google too much for answers 
1) What does the T stand for, in the famous Zeiss "T" coating system?
2) What is the difference between the "T" system and the "T*" (T-star) system?
3) Zeiss developed the T* system together with another major lens-camera manufacturer. Who was it, and how the other manufacturer called their own version of it?
Have fun replying  there's nothing to win though 
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
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bob955i
Joined: 15 Apr 2007
Posts: 1844
Location: Scotland
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| Posted: Mon Nov 19, 2007 7:16 pm Post subject: |
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No. 3 - Rollei with HFT?
No. 2 - "Transparent"...?
No. 1 - 'T' is single coated while T* is multi-coated? |
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Orio
Joined: 24 Feb 2007
Posts: 12691
Location: West Emilia
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| Posted: Mon Nov 19, 2007 7:59 pm Post subject: |
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@ Bob: aside from number swapping, you wrote two correct and one wrong.
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
www.timelessphotography.eu
www.oriofoto.net
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LucisPictor
Joined: 26 Feb 2007
Posts: 7849
Location: Oberhessen, Germany / Maidstone ('95-'96)
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| Posted: Mon Nov 19, 2007 8:01 pm Post subject: |
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I won't play, since I have just read something about it and I do not want to spoil this quiz by quoting what somebody else had written.
(And Bob did well anyway.)
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There are two kinds of people in the world: those who divide the world into two kinds of people, and those who don’t.
"Schnäppchenjäger" | "KAPCTEH" | "Karusutenu" | "Carsten" | T-shirt?
Cams in use: EOS 40D, EOS 350D, EOS 50e, EOS 500, Spotmatic SPII, EXA I & 1c, Zenit EM; Oly 35RC,Minolta Hi-Matic E & F, Ricoh 500RF, Yashica Electro 35 GS, FED-3b and some others...
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; Summicron 2.0/50 | 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: Zeiss 2.8/50; 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
Green are the lenses I shoot the most.
More? http://forum.mflenses.com/viewtopic.php?t=65
Last edited by LucisPictor on Mon Nov 19, 2007 8:02 pm; edited 1 time in total |
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bob955i
Joined: 15 Apr 2007
Posts: 1844
Location: Scotland
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| Posted: Mon Nov 19, 2007 8:01 pm Post subject: |
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I went for easiest first hence the reverse numbering.
@ Carsten: You can still play because Orio hasn't indicated which ones I got right and wrong, so it's still open. |
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LucisPictor
Joined: 26 Feb 2007
Posts: 7849
Location: Oberhessen, Germany / Maidstone ('95-'96)
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| Posted: Mon Nov 19, 2007 8:21 pm Post subject: |
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| bob955i wrote: | I went for easiest first hence the reverse numbering.
@ Carsten: You can still play because Orio hasn't indicated which ones I got right and wrong, so it's still open. |
No, I mean I have read something about it in a book about Zeiss.
So it would not be fair and just end this quiz. 
_________________
There are two kinds of people in the world: those who divide the world into two kinds of people, and those who don’t.
"Schnäppchenjäger" | "KAPCTEH" | "Karusutenu" | "Carsten" | T-shirt?
Cams in use: EOS 40D, EOS 350D, EOS 50e, EOS 500, Spotmatic SPII, EXA I & 1c, Zenit EM; Oly 35RC,Minolta Hi-Matic E & F, Ricoh 500RF, Yashica Electro 35 GS, FED-3b and some others...
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; Summicron 2.0/50 | 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: Zeiss 2.8/50; 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
Green are the lenses I shoot the most.
More? http://forum.mflenses.com/viewtopic.php?t=65 |
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Orio
Joined: 24 Feb 2007
Posts: 12691
Location: West Emilia
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| Posted: Mon Nov 19, 2007 8:24 pm Post subject: |
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We can anticipate that one of the answers will be a little surprise.
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
www.timelessphotography.eu
www.oriofoto.net
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poilu
Joined: 26 Aug 2007
Posts: 3389
Location: Greece
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| Posted: Mon Nov 19, 2007 8:39 pm Post subject: |
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Yes little surprise, Zeiss copy the T from Takumar & the * from Pentax 
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Orio
Joined: 24 Feb 2007
Posts: 12691
Location: West Emilia
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| Posted: Mon Nov 19, 2007 8:43 pm Post subject: |
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Part right, poilu, but part wrong.
Here's the correct answers:
1) "T" stands for "Transparenz"
2) The T coating was a single calcium fluorite vaporization, while the T-star is made with three different vaporization layers of different metals, one for each light colour lenght (red, green and blue)
3) The company which worked with Zeiss on the T* coating is Pentax, and their version of it is called SMC (Super Multi Coated).
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poilu
Joined: 26 Aug 2007
Posts: 3389
Location: Greece
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| Posted: Mon Nov 19, 2007 8:54 pm Post subject: |
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Orio your book is just bullshit, Zeiss T* was a reaction to pentax not a collaboration 
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Orio
Joined: 24 Feb 2007
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poilu
Joined: 26 Aug 2007
Posts: 3389
Location: Greece
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| Posted: Mon Nov 19, 2007 8:58 pm Post subject: |
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| Anthony Oresteen at photo.net wrote: |
Here's my understanding of the T* coatings. T* coatings were introduced in the fall 1972 with no fanfare. It was Zeiss's multicoating process. In 1974 Zeiss started marketing "T*" as a reaction Pentax's SMC (Super Multi Coated) lens ads.
Chrome Hasselblad lenses made in late 72 and 73 are T* though not marked. Early black C lenses are T* but not marked. My understanding is that in late 73/early 74 Zeiss started marking Hasselblad lenses as "T*". There are chrome C lenses that are marked T*. I have only seen this on a 80mm lens.
In 1982 while I was in Germany I spoke with the Zeiss factory about my chrome 250 Sonnar. I was told that it was a 1973 vintage lens and it was T* coated but not marked as such. |
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Orio
Joined: 24 Feb 2007
Posts: 12691
Location: West Emilia
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| Posted: Mon Nov 19, 2007 9:03 pm Post subject: |
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Sorry, but I fail to see why this Anthony Oresteen should be considered a more reliable source than the article that I read (which in two different points mentions a Zeiss-Pentax collaboration).
At this point, I want to read more sources about it.
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
www.timelessphotography.eu
www.oriofoto.net
Read list of equipment HERE
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poilu
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Orio
Joined: 24 Feb 2007
Posts: 12691
Location: West Emilia
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| Posted: Mon Nov 19, 2007 9:21 pm Post subject: |
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Very interesting. But it says it's optimized for motion picture film. So far the lenses in the Z series sport the T*
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_________________
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ХОРИОС-61 ( ώρεος ) : Lens sana in corpore sano
www.timelessphotography.eu
www.oriofoto.net
Read list of equipment HERE
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