Two very different Biotar 58 mm-f:2 Carl Zeiss Jena.

[Petzval 1840]

Hi:

Approximately 25 years ago I bought in Barcelona this two Biotar 58mm-f:2. Both are Carl Zeiss Jena, but they are very different.

Does anybody can explain to us the reason?

Bests Regards: David.

[MF-addicted]

Hi David,

here you can look up the production years:

http://forum.mflenses.com/carl-zeiss-jena-lenses-issue-date-by-serial-number-t6865.html

The first has 17 blades and was produced around 1951-1952 (serial 34...)
The second has 10 blades and has pre-set aperture and was produced around 1957-1958 (serial 47...)

I am sure that the first has a brass (messing) tube (... in the black version - thanks to Klaus ) and I am not sure, but think that the second has an aluminum tube.

I have got the first one with 17 blades in black and f=5.8 cm.
The first version is one of the rarest.

Both of them are really good performes ... as well as their russian brother Helios 44 and his variations.

Might be some interesting links:

http://forum.mflenses.com/viewtopic.php?t=14481&highlight=biotar&sid=66744daa4450f28bf0dd04a4a9e39f31

http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/53228-czj-biotar-58mm-f-2-0-a.html
_________________

EOS 400D --------------------------------------------------------------------------------------------------------------------------------
Angenieux: 2,5-3,3/35-70
Canon: FD 2,8/300 L
Carl Zeiss Jena:Flektogon 2,4/35, Pancolar 2/50, black Biotar 2/5,8cm 17bl., slim Biotar 1,5/7,5cm 18bl., Pancolar 1,8/80mm, Sonnar 3,5/135, Sonnar 2,8/180
Carl Zeiss: Distagon 4/18T*, Distagon 2,8/28 T*, Distagon 1,4/35 HFT, Planar 1,4/50 T*, Vario-Sonnar 3,4/35-70 T*, Vario-Sonnar 3,5/40-80 T*,Vario-Sonnar 4,5-5,6/100-300 T*
Leitz: Elmarit-R Wetzlar 2.8/28, Summicron-R 2/50 Wetzlar, Macro Elmarit-R 2.8/60, Elmarit-R Wetzlar 2,8/90 I
Schneider: Xenar 2.8/50
Russian: Industar 50-2, Industar 61,Helios-44-1 2/58mm,Helios-44-2 2/58mm, MC 3M-5CA 8/500
Meyer: Pentacon 3,5/30, Trioplan 2,9/50, Trioplan 3,5/75, Trioplan 2,8/100, Orestor 2,8/135mm, Orestegon 4/200
ISCO: Westron 2,8/35, Westron 3,5/35, Tele-Westanar 3,5/135, Tele-Westanar 4/180
Yashica: ML 15, ML 21, ML 24, ML 28, ML 35, ML 100/3.5 Macro,
Nikon: Nikkor AI 2,0/24, Nikkor-P (Planar) 2,5/105
Steinheil Cassar 3,5-4,5/75 VL, Quinar 3,5/85, Culminar 4,5/105, Culminar 4,5/135, Auto-D Tele Quinar 2,8/135
Tomioka Tomioka - Cosinon 1,2/55, Tomioka - Revuenon 1,4/55
Others: Officine Galileo Ingra 3,5/5cm, Wilon 4,5/75, Dallmeyer 4,5/4", Bonotar 4,5/105,

[Esox lucius]

Hi David,

Your lens #3418808 is quite near mine #3418060.



This prewar design and postwar manufactured fully manual version has a protruding rear element which at infinity can hit some mirrors (or glass adapters). It clears the Bessaflex' mirror by what seems to be perhaps only 0.3mm

I have not yet seen this first version with 1Q stamp, maybe the export standard quality control was introduced later and not immediately after WW2?
_________________
Vilhelm

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Nikon DSLR: Nikon D3, D70
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Nikkor AF: 17-35/2.8D, 24/2.8D, 24-70/2.8G, 28/1.4D, 35/2D, 50/1.4D, 50/1.4G, 60/2.8 Micro, 60/2.8G Micro, 70-200/2.8G, 80-400/4.5-5.6D VR, 200-400/4G VR
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M42 SLR: Voigtländer Bessaflex TM
M42: Flektogon 20/4, Flektogon 35/2.4, Tessar 50/2.8 T, Super-Takumar 55/1.8, Biotar 58/2 T, Pentacon 135/2.8, Sonnar 135/3.5
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[exaklaus]

[MF-addicted]

[horvlas]

I have the first, older version too, Ser no starts with 3351xxx, not bad performer, but Helios 44-7 is better in my tests.

[wol]

I love that aperture! So much blades

[Petzval 1840]

Hello:

I show them a photo taken on December 8 with the Biotar design of pre war, to f:4. " Top model " is my dog female " Rams ", which always wants to raise the wagon of the tractor, when I am going to look for hay for my old mare (30 years) and my two female donkeys.

Bests Regards: David

[francotirador]

Hi David.
It would be very interesting if you could make a comparison of both lenses and see how they work.
Thanks.

Hola David.
Seria muy interesante si pudiera hacer una comparative de ambos lentes, aver como se comportan.
Gracias y disculpa el atrevimiento.
_________________
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[taunusreiter]

They share the same optical calculation (date 1936).
For the second version, a hood may be negligible
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[Petzval 1840]

Hello all the People:

The Biotar design post-WW2 has the ring of the diaphragm blocked to maximum opening: only I can compare with same diaphragm.

What type of tests do they suggest me to compare them? The design pre-WW2 was used like lens of enlarger and he suffered temperature for which was not designed.

Greetings: David

[lulalake]

I don’t know if this link has been posted but it’s several lists of lens and Compur shutter serial numbers and the dates of manufacture.

I have dated a CJZ Tessar folder lens of mine and its Compur shutter to the war years. Pretty amazing:



Jules