Carl Zeiss Jena Biotar 5,8cm f/2 Black Lens Review

Little brother of legendary Carl Zeiss Jena Biotar 75mm f/1.5.Small size not very good looking lens, but it has amazing picture quality, this lens is older and better than alu finish lens and much more rare.

Vendor name	Type name	Product year
Carl Zeiss Jena	Biotar	1946-1960
Focal min (mm)	Focal max (mm)	Focus min(cm)
58	58	50
Aperture max	Aperture min	Lens size (mm)
2	16	60x40
Elements	Diaphragm Action	Weight (g)
6 in 4 groups	pre-set,manual,auto	210
Filter size (mm)	Angular Field	Body mount
40.5	41	Exa,M42