Mamiya/Sekor SX Auto 35mm F/2.8

Wide-angle prime lens • Film era • Discontinued

  • Announced:
  • · 1974
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · AUTO mamiya/sekor SX 1:2.8 f=35mm
  • Class:
  • · Fast full-frame wide-angle prime lens
  • System:
  • · Mamiya SX M42 (1974)

Model history (3)

■Mamiya-Sekor 35mm F/2.8 for CPA6 - 50.50m⌀52 ●
■Mamiya/Sekor Auto 35mm F/2.8A6 - 50.40m⌀49 1966 ●
■Mamiya/Sekor SX Auto 35mm F/2.8A7 - 50.40m⌀52 1974 ●

Specification

Optical design:
35mm full frame
35mm
F/2.8
7 elements in 5 groups
M42 [45.5mm] (modified)
63.4° (35mm full frame)
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings only)
5 (five)
Focusing:
0.40m
<No data>
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
195g
⌀?×60.3mm
Accessories:
Screw-type 52mm
Clamp-on round
Not available

Sources of data

  • Mamiya DSX 1000 & DSX 500 owners operating manual.
  • Mamiya MSX 1000 & MSX 500 owners operating manual.
  • mamiya/sekor DSX series owners operating manual.
  • mamiya/sekor MSX 500 owners operating manual.
  • Mamiya single-lens reflex cameras, interchangeable lenses and accessories booklet (1975).

From the editor

Mamiya DSX series owners operating manual, as well as MSX 500 owners operating manual state that the lens construction features 7 elements in 4 groups. This is not true, since the Rolleinar-MC 35/2.8 lens, which was based on the same optical formula, clearly has 5 groups according to the image of the optical formula.

Other wide-angle prime lenses in the Mamiya SX M42 system

■M42 mount (1)
Mamiya/Sekor SX Auto 28mm F/2.8A7 - 70.30m⌀58 1974 ●

Lenses with similar focal length

■M42 mount (71)
Asahi Super-Takumar 35mm F/3.5 [357, 43571]A5 - 40.45m⌀49 1962 ●
Asahi Auto-Takumar 35mm F/2.3 [335, 43350]S6 - 50.45mA65 1959 ●
Asahi Super-Takumar 35mm F/2 [43931]A8 - 70.40m⌀49 1967 ●
Asahi Auto-Takumar 35mm F/3.5 [336, 43360]S5 - 40.45m⌀46 1959 ●
Asahi Super-Takumar 35mm F/2 [368, 43680]A8 - 70.45m⌀67 1963 ●
Asahi Takumar 35mm F/4 [329]M5 - 40.45m⌀46 1957 ●
Asahi Super-Multi-Coated Takumar 35mm F/2 [43932]A8 - 70.40m⌀49 1971 ●
Asahi Super-Multi-Coated Takumar 35mm F/3.5 [43572]A5 - 40.45m⌀49 1971 ●
Chinon 35mm F/2.8 Multi Coated
akaAuto-Alpa 35mm F/2.8 Multi-Coated		A6 - 60.30m⌀52 ●
Cosina Voigtlander Ultron 40mm F/2 Aspherical SLA6 - 50.40m⌀52 2002 ●
Cosina Cosinon Auto 40mm F/2.5 MC • Pancake lens
akaBauer Neovaron 40mm F/2.5 Multicoated
akaPorst Color Reflex Auto 40mm F/2.5 MC
akaVivitar Auto 40mm F/2.5 VMC		A5 - 40.60m⌀49 1978 ●
Cosina Cosinon Auto 35mm F/2.8 [MC]A6 - ?0.50m⌀49 ●
Enna Munchen Lithagon 35mm F/3.5 Type 2M4 - 40.50m⌀52 ●
Enna Munchen Lithagon 35mm F/2.8 Type 1P6 - 50.40m⌀52 1955 ●
Enna Munchen Super-Lithagon 35mm F/1.9P9 - 80.30m⌀52 1958 ●
Enna Munchen Lithagon 35mm F/4.5 CP4 - 40.80m⌀52 1953 ●
Enna Munchen Lithagon 35mm F/3.5 C Type 1P4 - 40.40m⌀52 ●
Enna Munchen Super-Lithagon 35mm F/2.5 CP6 - 60.50m⌀52 1956 ●
Enna Munchen Lithagon 35mm F/2.8 Type 2P6 - 50.40m⌀52 ●
Fuji Photo Film [EBC] Fujinon-W 35mm F/2.8A7 - 60.40m⌀49 1970 ●
Fuji Photo Film EBC Fujinon-W 35mm F/1.9A8 - 60.40m⌀49 ●
Fuji Photo Film Fujinon-W 35mm F/3.5A4 - 40.40m⌀49 ●
Hanimex Wide-Auto 35mm F/2.8A6 - ?0.60m⌀49 ●
Mamiya/Sekor Auto 35mm F/2.8A6 - 50.40m⌀49 1966 ●
Mamiya-Sekor 35mm F/2.8 for CPA6 - 50.50m⌀52 ●
Meyer-Optik Gorlitz Lydith 30mm F/3.5P5 - 50.33m⌀49 1963 ●
Meyer-Optik Gorlitz Primagon 35mm F/4.5 [V]P4 - 40.40m⌀49 1955 ●
Meyer-Optik Gorlitz Helioplan 40mm F/4.5 VP4 - 40.50m 1952 ●
Olympus G.Zuiko Auto-W 35mm F/2.8 for FTLA7 - 60.30m⌀49 1970 ●
P. Angenieux Paris 35mm F/2.5 [Retrofocus] Type R1M6 - 5S.VIII 1950 ●
Panagor Auto Wide-Angle 35mm F/2A8 - 60.30m⌀58 ●
Pentacon 30mm F/3.5P5 - 50.33m⌀49 1971 ●
Kuribayashi K.C. Petri Orikkor 35mm F/3.5P5 - 50.90m⌀49 1959 ●
Ricoh Rikenon Auto 35mm F/2.8A6 - 50.40m⌀49 ●
Ricoh Rikenon Auto 35mm F/2.8 EEA6 - 50.40m⌀52 ●
Sankyo Kohki W-Komura 35mm F/2.5P7 - 50.60m⌀55 ●
Schacht R Travegon 35mm F/3.5A6 - 30.50m ●
Schneider-Kreuznach Isogon 40mm F/4.5M4 - 40.50m⌀49 1951 ●
Schneider-Kreuznach Curtagon 35mm F/2.8 [I]A6 - 50.35mS.VII 1958 ●
Schneider-Kreuznach Curtagon 35mm F/2.8 [II]A6 - 60.30m⌀49 1966 ●
Soligor C/D 35mm F/2 P (s/n 1xxxxxxx)A8 - 70.30m⌀58 1974 ●
Soligor C/D 35mm F/2.8A6 - 50.35m⌀49 ●
Mir-24M 35mm F/2 [MC]
akaМИР-24М 35mm F/2 [МС]		A8 - 70.30m⌀58 1976 ●
Mir-1V 37mm F/2.8
akaМИР-1В 37mm F/2.8		P6 - 50.70m⌀49 1984 ●
Steinheil Munchen Culmigon 35mm F/4.5M4 - 40.50mS.V 1955 ●
Steinheil Munchen Cassaron 40mm F/3.5 VLM3 - 30.60m⌀34 1952 ●
Steinheil Munchen Auto-D-Quinaron 35mm F/2.8A7 - 50.20m⌀49 1966 ●
Steinheil Auto-Culmigon 35mm F/3.5A4 - 40.80m⌀49 1966 ●
Steinheil Culmigon 35mm F/3.5 BVP4 - 40.80m⌀49 ●
Steinheil Munchen Auto-D-Quinaron 35mm F/2.8 for Edixa-MATA7 - 50.20m⌀49 ●
Tokina 35mm F/2.8 RMC
akaTokina SL 35mm F/2.8		A6 - 50.35m⌀52 ●
Vivitar Auto Wide-Angle 35mm F/2.8 [I] (s/n 22xxxxxx)A6 - 50.45m⌀52 1969 ●
Vivitar Auto Wide-Angle 35mm F/1.9 (s/n 28xxxxxx)A8 - 60.30m⌀55 1973 ●
Vivitar Auto 35mm F/2.8 "Chrome Nose"A6 - 50.30m⌀52 1967 ●
Vivitar Auto Wide Angle 35mm F/2.8 "Bright Band" (s/n 22xxxxxx)A6 - 50.30m⌀52 1968 ●
Vivitar Auto Wide-Angle 35mm F/2.8 [II] (s/n 37xxxxxx)A6 - 50.40m⌀52 ●
Yashica Yashinon-DX Auto 35mm F/2.8A6 - 50.40m⌀52 ●
Yashica Super Yashinon-DX 35mm F/2.8P6 - 50.45m⌀52 ●
Yashica Yashinon-DS Auto 35mm F/2.8A6 - 50.30m⌀52 ●
Yashica Yashinon DS-M Auto 35mm F/2.8A7 - 60.30m⌀52 ●
Yashica Yashikor Auto 35mm F/2.8A6 - 50.60m ●
Yashica Super Yashinon-R 35mm F/2.8P? - ?1.00m⌀46 1961 ●
Monolens Achromat 35mm F/2.8 Iris Soft SLRM2 - 10.50m⌀43 2019 ●
Carl Zeiss Classic Distagon T* 35mm F/2 ZE / ZF / ZF.2 / ZK / ZSA9 - 70.30mE58 2006 ●
Carl Zeiss Skoparex 35mm F/3.4A6 - 50.30mB50 1968 ●
Carl Zeiss Distagon [HFT] 35mm F/2.8
akaRollei-HFT Distagon 35mm F/2.8
akaVoigtlander Color-Skoparex 35mm F/2.8		A5 - 50.40mE49 1970 ●
Carl Zeiss Jena DDR Flektogon 35mm F/2.4 [electric] MCA6 - 60.19mE49 1975 ●
Carl Zeiss Jena DDR Tessar 40mm F/4.5 T Type 1M4 - 30.60mE30.5 ●
Carl Zeiss Jena DDR Tessar 40mm F/4.5 [T] Type 2M4 - 30.40mE49 ●
Carl Zeiss Jena DDR Flektogon 35mm F/2.8 Type 1P6 - 50.36mE49 1953 ●
Carl Zeiss Jena DDR Flektogon 35mm F/2.8 Type 4A6 - 50.18mE49 1961 ●
■Interchangeable mount (18)
Hanimex Wide Angle 35mm F/2.8 [T]P6 - ?0.60m⌀49 ●
Hanimex Wide 35mm F/3.5 [T]P6 - ?0.60m⌀52 ●
Kenko 35mm F/4 Soft MC [T]M5 - 50.30m⌀52 1996 ●
Sankyo Kohki W-Komura 35mm F/2.5 [Unidapter]P7 - 50.60m⌀55 ●
Sankyo Kohki W-Komura 35mm F/2.5 [Unidapter Auto]A7 - ?0.50m⌀55 ●
Komuranon 35mm F/2.5 K·M·CA7 - 50.50m⌀58 1974 ●
Sigma[-XQ] MF 35mm F/2.8 Multi-Coated [Flash Auto] [YS]A6 - 50.50m⌀52 1975 ●
Soligor Wide-Auto 35mm F/2.8 (s/n 1xxxxxxx) [T-4]A6 - 50.40m⌀49 ●
Soligor 35mm F/3.5 [T]P6 - 53 ft.⌀46 ●
Soligor 35mm F/2.8 [T]P6 - 50.50m⌀49 ●
Mir-1A 37mm F/2.8 [T]P6 - 50.24m⌀52 1972 ●
Tamron Auto 35mm F/2.8 [Adapt-A-Matic]A6 - 50.30m⌀55 1969 ●
Tamron 35mm F/2.8 [T]
akaSoligor 35mm F/2.8		P6 - 50.90m 1961 ●
Vivitar Wide Angle 35mm F/3.5 [T]P5 - 50.90m⌀46 ●
Vivitar Wide-Angle 35mm F/2.8 [T]P6 - 50.90m⌀52 ●
Vivitar Auto Wide-Angle 35mm F/2.8 (s/n 37xxxxxxx) [T-4]A6 - 50.45m⌀49 1968 ●
Vivitar Auto Wide-Angle 35mm F/2.5 (s/n 37xxxxxx) [TX]A7 - 70.28m⌀58 1976 ●
Hanimar 35mm F/3.5 [T]P6 - ?0.90m⌀52 ●

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