Carl Zeiss Jena Flektogon 2.8/20
Construction -9 elements, 8 groups
Angular field -93°
Minimum focusing distance -0.19m
Diaphragm action -Fully automatic
Minimum aperture -f/22
Filter size -67mm screw-in type
Push-on diameter -70mm
Weight -350g
Barrel length -54.5mm
Description -This model succeeded the 4/20, available in both auto and electric versions. Also remounted in B-mount as the Carl Zeiss Jena Prakticar 2.8/20.
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