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Carl Zeiss Jena Flektogon 2.8/20 User manual

User manual for Carl Zeiss Jena Flektogon 2.8/20. 2 pages in English. Read the original PDF, download or print a copy without registration.

2 pagesEnglish0.7 MB PDF
Carl Zeiss Jena Flektogon 2.8/20 manual cover
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Document details

Brand
Carl Zeiss
Model / document
Carl Zeiss Jena Flektogon 2.8/20
Document type
User manual
Language
English
Pages
2
File size
0.7 MB
Category
Lenses & filters
Document date
Not specified in catalog

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Page 1 · Read text
PRAKTICA-USERS.COM

The definitive equipment listing for Prakticas on the internet

Lenses -> M42 -> 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 - 3509
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.

Lens schema: Pictures taken using this lens:
2001 fireworks by André La Pierre
‘Additional data:

Camera: Praktica BX 20 S
Shot on: Kodak Royal Gold 200 with around f5.6 aperture

‘The Hungarian Pariament in winter time by Katherine Dér
Additional data:

Camera: Praktica PLC 3
Shot on: Fortepan B&W 100 ASA

Lens:
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PDF verified 2026-10-10.