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THE PRAKTINA SYSTEM

 

Carl Zeiss Jena

ManufacturerVEB Carl Zeiss Jena
Company locationJena, East Germany
Manufacturer's name on the lensesCarl Zeiss Jena, C.Z. Jena, Jena
Remarks
Lenses for export were marked from 1954 with different engraving. The name Carl Zeiss Jena was replaced by C.Z.Jena and later by Jena with the original name replaced by the initial letter: B=Biotar, Bm=Biometar, F=Flektogon, S=Sonnar, T=Tessar, Tr=Triotar

Lenses with fixed mount

Lens Name Focal
Lenght
Aperture
Max-Min
Elem./
Groups
Closest
Focus m
Diaph.
Type
Finishing Filter Size
mm
Flektogon
25 4 - 22 7 / 6 0,2 ASB silver (ver.1)
black (ver.2)
77x0.75
Flektogon
35 2.8 - 16 6 / 5 0,35 BV silver Note 1
Flektogon
35 2.8 - 16 6 / 5 0,35 SB silver Note 2
Flektogon
35 2.8 - 16 6 / 5 0,36 ASB silver Note 2
Tessar
40 4.5 - 16 4 / 3 0,4 NB silver 49x0.75
Tessar
50 2.8 - 16 4 / 3 0,5 BV silver 40.5x0.5
Tessar
50 2.8 - 16 4 / 3 0,5 SB silver 49x0.75
Tessar
50 2.8 - 16 4 / 3 0,5 ASB silver
with silver front ring (ver.1)
with black front ring (ver.2)
49x0.75
Flexon
50 2 - 22 6 / 4 0,5 ASB silver
with silver front ring (ver.1)
with black front ring (ver.2)
49x0.75
Pancolar
50 2 - 22 6 / 4 0,5 ASB silver
with silver front ring (ver.1)
with black front ring (ver.2)
49x0.75
Biotar
58 2 - 16 6 / 4 0,5 BV silver 49x0.75
Biotar
58 2 - 16 6 / 4 0,5 SB silver 49x0.75
Biotar
75 1.5 - 16 6 / 4 0,8 BV silver 58x0.75
Biometar
80 2.8 - 16 5 / 4 0,8 BV silver 49x0.75
Biometar
80 2.8 - 22 5 / 4 0,8 ASB black
with silver distance ring (ver.1)
with black distance ring (ver.2)
49x0.75
Biometar
120 2.8 - 22 5 / 4 1,3 ASB black
with silver distance ring (ver.1)
with black distance ring (ver.2)
67x0.75
Triotar
135 4 - 22 3 / 3 1,2 BV silver 49x0.75
Sonnar
135 4 - 22 4 / 3 1,2 BV silver 49x0.75
  Note 1: 51 slip-on filters; none thread on the lens.
  Note 2: 58x0.75 filters with adapter ring M58-M49; 49x0.75 thread on the lens.

Lenses with interchangeable mount

Lens Name Focal
Lenght
Aperture
Max-Min
Elem./
Groups
Closest
Focus m
Diaph.
Type
Adapter
Type
Finishing Filter Size
mm
Sonnar
180 2.8 - 22 5 / 3 1,5 BV CZ-1 black 77x0.75
Sonnar
300 4 - 22 5 / 3 3 BV CZ-1 black 77x0.75
Fernobjectiv
500 8 - 45 2 / 1 6 RB CZ-2 black 77x0.75
Spiegelobjectiv
500 4 - 4 4 /
2 mirrors
7 none CZ-3 black (ver.1)
yellow-green (ver.2)
special
fitting
Spiegelobjectiv
1000 5.6 - 5.6 4 /
2 mirrors
16 none CZ-4 black (ver.1)
yellow-green (ver.2)
special
fitting

Lenses with Praktisix mount

Lens Name Focal
Lenght
Aperture
Max-Min
Elem./
Groups
Closest
Focus m
Diaph.
Type
Adapter
Type
Finishing Filter Size
mm
Sonnar
180 2.8 - 22 5 / 3 1,5 ASB CZ-5 black 86x1
Sonnar
300 4 - 32 5 / 3 4 ASB CZ-5 black 86x1

Adapters

 
 

Adapter type CZ-1
 

Adapter type CZ-2
 

Adapter type CZ-3
 
 
 
 
 

Adapter type CZ-4

Adapter type CZ-5 - top view

Adapter type CZ-5 - bottom view
 
 
These adapters have been coded only in reference to the Praktina lenses

   

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Last modified: December 16, 2019
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