THE PRAKTINA SYSTEM
LENSES

Carl Zeiss Jena

Manufacturer	VEB Carl Zeiss Jena
Company location	Jena, Germany
Manufacturer's name on the lenses	Carl Zeiss Jena C.Z. Jena Jena

Starting from 1954 lenses for export were marked with different engraving. The Company name Carl Zeiss Jena was replaced by C.Z.Jena and later by Jena. The name of the lens is replaced by the initial letter: B (Biotar), Bm (Biometar), F (Flektogon), S (Sonnar), T (Tessar), Tr (Triotar).

Lenses with Praktina mount

Lens Name	Diaph. Type	Ver.	Minimum Aperture	Element/ Groups	Closest Focus m	Finishing	Filter Size mm	Note
Flektogon 25mm f/4	ASB	1	22	7 / 6	0.2	silver / black front ring	77x0.75	2
Flektogon 25mm f/4	ASB	2	22	7 / 6	0.2	black / silver diaph. ring	77x0.75	2
Flektogon 35mm f/2.8 T	BV		16	6 / 5	0.35	silver	none	3 - 5
Flektogon 35mm f/2.8 T	SB	1	16	6 / 5	0.35	silver	none	3 - 5
Flektogon 35mm f/2.8	SB	2	16	6 / 5	0.35	silver	49x0.75	4 - 6
Flektogon 35mm f/2.8	SB	3	16	6 / 5	0.36	silver	49x0.75	6
Flektogon 35mm f/2.8	ASB		22	6 / 5	0.36	silver / black front ring	49x0.75	1 - 6
Tessar 40mm f/4.5	NB		16	4 / 3	0.4	silver	49x0.75
Tessar 50mm f/2.8 T	BV		16	4 / 3	0.5	silver	40.5x0.5	3
Tessar 50mm f/2.8	SB		16	4 / 3	0,5	silver	49x0.75	4
Tessar 50mm f/2.8	ASB	1	16	4 / 3	0,5	silver / silver front ring	49x0.75	1
Tessar 50mm f/2.8	ASB	2	16	4 / 3	0,5	silver / black front ring	49x0.75	1
Flexon 50mm f/2	ASB	1	22	6 / 4	0,5	silver / silver front ring	49x0.75	1
Flexon 50mm f/2	ASB	2	22	6 / 4	0,5	silver / black front ring	49x0.75	1
Pancolar 50mm f/2	ASB	1	22	6 / 4	0,5	silver / silver front ring	49x0.75	1
Pancolar 50mm f/2	ASB	2	22	6 / 4	0,5	silver / black front ring	49x0.75	1
Biotar 58mm f/2 T	BV		16	6 / 4	0,5	silver	49x0.75	3
Biotar 58mm f/2	SB		16	6 / 4	0,5	silver	49x0.75	4
Biotar 75mm f/1.5	BV		16	6 / 4	0,8	silver	58x0.75	1 - 4
Biometar 80mm f/2.8 T	BV		16	5 / 4	0,8	silver	49x0.75
Biometar 80mm f/2.8	ASB	1	22	5 / 4	0,8	silver	49x0.75
Biometar 80mm f/2.8	ASB	2	22	5 / 4	0,8	silver and black	49x0.75	2
Biometar 80mm f/2.8	ASB	3	22	5 / 4	0,8	black	49x0.75	2
Biometar 120mm f/2.8	ASB	1	22	5 / 4	1,3	silver and black	67x0.75	2
Biometar 120mm f/2.8	ASB	2	22	5 / 4	1,3	black	67x0.75	2
Triotar 135mm f/4	BV		22	3 / 3	1,2	silver	49x0.75	4
Sonnar 135mm f/4	BV		22	4 / 3	1,2	silver	49x0.75	2
Note 1: the I.R. mark was introduced during production Note 2: I.R. mark Note 3: T mark not present on the lenses marked C.Z.Jena or Jena Note 4: T mark is present only at the beginning of production Note 5: 51 slip-on filters Note 6: 58x0.75 filters with adapter ring M58-M49

Lenses with interchangeable mount

Lens Name	Diaph. Type	Ver.	Minimum Aperture	Element Groups	Closest Focus m	Finishing	Filter Size mm	Adapter
Sonnar 180mm f2.8	BV		22	5 / 3	1,5	black	77x0.75	CZ-1
Sonnar 300mm f/4	BV		22	5 / 3	3	black	77x0.75	CZ-1
Fernobjectiv 500mm f/8	RB		45	2 / 1	6	black	77x0.75	CZ-2
Spiegelobjectiv 500mm f/4	none	1	4	4 / 2 mirrors	7	black	special fitting	CZ-3
Spiegelobjectiv 500mm f/4	none	2	4	4 / 2 mirrors	7	yellow-green	special fitting	CZ-3
Spiegelobjectiv 1000mm f/5.6	none	1	5.6	4 / 2 mirrors	16	black	special fitting	CZ-4
Spiegelobjectiv 1000mm f/5.6	none	2	5.6	4 / 2 mirrors	16	yellow-green	special fitting	CZ-4

Lenses with Praktisix mount

Lens Name	Diaph. Type	Ver.	Minimun Aperture	Element/ Groups	Closest Focus m	Finishing	Filter Size mm	Adapter
Sonnar 180mm f/2.8	ASB		22	5 / 3	1,5	black	86x1	CZ-5
Sonnar 300mm f/4	ASB		22	5 / 3	4	black	86x1	CZ-5

Adapters

These Carl Zeiss Jena adapters have been coded for quick identification.

	Adapter CZ-1	Adapter CZ-2	Adapter CZ-3
	Adapter CZ-4	Adapter CZ-5 - top view	Adapter CZ-5 - bottom view

| SITE MAP |

| PREVIOUS PAGE | NEXT PAGE |