Pentacon Prakticar PB 28mm F/2.8 MC

Wide-angle prime lens • Film era • Discontinued

Pentacon Prakticar PB 28mm F/2.8 MC
  • Announced:
  • · October 1982
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · MC PENTACON PRAKTICAR PB 2.8/28
  • Class:
  • · Fast full-frame wide-angle prime lens
  • System:
  • · Praktica B (1978)

Abbreviations

MC Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models.

Specification

Optical design:
35mm full frame
28mm
F/2.8
7 elements in 6 groups
Praktica B [44.4mm]
75.4° (35mm full frame)
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings only)
6 (six)
Focusing:
0.22m
<No data>
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
219g
⌀?×45.5mm
Accessories:
Screw-type 52mm
<No data>
<No data>

Source of data

  • Praktica B-System booklet (1982).

From the Popular Photography magazine (January 1983)

photokina'82

Pentacon also announced the availability of certain lenses made by Sigma in the Praktica mount with electrical contacts for relaying diaphragm information to the camera. The lenses are to bear the Prakticar name, and will include: 28-mm f/2.8, 135-mm f/3.5, 70-105-mm f/3.5, and 100-200-mm f/4.5. The Tamron selection should include the entire line, since they have developed a Praktica B adapter, complete with electrical contacts.

From the editor

Introduced at Photokina 1982.

The lens was produced by SIGMA for Praktica B series 35mm SLR cameras. Optically it is identical to the Sigma Mini-Wide MF 28/2.8.

There was also a "PM" version with the M42 screw mount instead of the Praktica B mount.

Other wide-angle prime lenses in the Praktica B system

■Praktica B mount (3)
Pentacon Prakticar 28mm F/2.8 MC
akaCarl Zeiss Jena P 28mm F/2.8 MC
akaMeyer-Optik 28mm F/2.8		A7 - 70.25m⌀49 1979 ●
Carl Zeiss Jena DDR Prakticar 28mm F/2.4 MC (390 units)A8 - 80.19mE49 1979 ●
Carl Zeiss Jena DDR Prakticar 35mm F/2.4 MCA6 - 60.22mE49 1979 ●

Lenses with similar focal length

■Interchangeable mount (25)
Hanimex 28mm F/2.8 [T]
akaHanimex 28mm F/3		P7 - ?0.45m⌀58 ●
Sankyo Kohki W-Komura 28mm F/3.5 [Unidapter]P6 - ?0.40m⌀55 ●
Sankyo Kohki W-Komura 24mm F/3.5 [Unidapter Auto]A7 - ?0.26m⌀52 ●
Sankyo Kohki W-Komura 28mm F/3.5 [Unidapter Auto]A8 - ?0.30m⌀52 ●
Komuranon 24mm F/2.5 K·M·CA11 - 80.26m⌀58 1974 ●
Komuranon 28mm F/2.5 K·M·CA9 - 70.30m⌀58 1974 ●
Sigma[-XQ] MF [Wide] 24mm F/2.8 Filtermatic [Multi-Coated] [YS]A10 - 80.20m⌀62 1972 ●
Sigma MF Widemax 28mm F/2.8 [Multi] [YS]A7 - 60.30m⌀62 1970 ●
Soligor Wide-Auto 28mm F/2.8 (s/n 1xxxxxxx) [T-4]A7 - 60.30m⌀58 ●
Soligor Wide-Auto 24mm F/2.8 (s/n 1xxxxxxx) [T-4]A8 - 70.30m⌀67 ●
Soligor Wide Angle 28mm F/2.8 [T]P6 - 63.5 ft.⌀58 ●
Mir-10A 28mm F/3.5 [T]
akaМИР-10А 28mm F/3.5		P8 - 70.20m⌀67 ●
Tamron 24mm F/2.5 MC 01B [Adaptall-2]A10 - 90.25m⌀55 1979 ●
Tamron 24mm F/2.5 01BB [Adaptall-2]A10 - 90.25m⌀55 1987 ●
Tamron 28mm F/2.5 MC 02B [Adaptall-2]A7 - 70.25m⌀49 1979 ●
Tamron 24mm F/2.5 CW-24 [Adaptall]A10 - 90.25m⌀55 1976 ●
Tamron 28mm F/2.8 CW-28 [Adaptall]A7 - 70.25m⌀52 1976 ●
Tamron Auto 24mm F/3.5 [Adapt-A-Matic]A8 - 60.25m⌀72 1971 ●
Tamron Auto 28mm F/2.8 [Adapt-A-Matic]A7 - 70.22m⌀62 1969 ●
Tamron Auto 28mm F/2.8 [Adapt-A-Matic]A7 - 70.22m⌀58 1972 ●
Vivitar Wide Angle 28mm F/2.5 [T]P8 - 70.30m⌀62 ●
Vivitar Auto Wide-Angle 28mm F/2.8 (s/n 37xxxxxxx) [T-4]A7 - 60.30m⌀58 1968 ●
Vivitar Auto Wide-Angle 24mm F/2.8 (s/n 37xxxxx) [T-4]A8 - 70.30m⌀67 ●
Vivitar Auto Wide-Angle 28mm F/2.5 (s/n 37xxxxxx) [TX]A7 - 70.24m⌀52 1976 ●
Vivitar Auto Wide-Angle 24mm F/2.8 (s/n 37xxxxxx) [TX]A8 - 70.23m⌀58 1976 ●

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