smc Pentax-M 35mm F/2.8

Wide-angle prime lens • Film era • Discontinued

  • Announced:
  • · 1977
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · ASAHI OPT. CO. SMC PENTAX-M 1:2.8 35mm
  • Class:
  • · Fast full-frame wide-angle prime lens
  • System:
  • · Pentax K (1975)

Abbreviations

SMC 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.
M A manual focus lens with automatic maximum aperture indexing, which is a mechanical system for coupling the lens to the camera's exposure system. More compact and lighter than the standard K-series counterpart, but with no sacrifice in quality of construction, resolution, durability or contrast. Learn more

Sample photos (7)

Unknown camera @ ISO ???, ??? sec. ???mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???
PENTAX K100D Super @ ISO 400, 1/125 sec. 35mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???
PENTAX K200D @ ISO 100, 1/750 sec. 35mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???
PENTAX K200D @ ISO 100, 1/3000 sec. 35mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???
PENTAX K200D @ ISO 100, 1/500 sec. 35mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???
PENTAX K200D @ ISO 100, 1/2000 sec. 35mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???
PENTAX K200D @ ISO 100, 1/350 sec. 35mm F/???. Peter Heinreich, https://www.flickr.com/photos/padiej/
F/???

Model history (2)

■smc Pentax-M 35mm F/2.8A6 - 60.30m⌀49 1977 ●
■smc Pentax-A 35mm F/2.8A6 - 60.30m⌀49 1983 ●

Specification

Optical design:
35mm full frame
35mm
F/2.8
6 elements in 6 groups
Pentax K [45.5mm]
63.4° (35mm full frame)
On Pentax K APS-C [1.53x] cameras:
35mm equivalent focal length:
53.6mm (in terms of field of view)
35mm equivalent speed:
F/4.3 (in terms of depth of field)
Diagonal angle of view:
44°
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings only)
5 (five)
Focusing:
0.30m
1:5.88
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
174g
⌀63×35.5mm
Accessories:
Screw-type 49mm
PH-S49 - Clamp-on rectangular
<No data>

Sources of data

  • Manufacturer's technical data.
  • Asahi Pentax series lenses and accessories booklet (PUB. 06771, 60 pages).
  • smc Pentax-A lenses operating manual.
  • Honeywell Hot Line Newsletter.
  • Pentax LX booklet (PUB. 06511).
  • Asahi Pentax MX booklet (PUB. 06241).
  • Asahi Pentax MX booklet (PUB. 06241) (March 1981).
  • Pentax MV booklet (PUB. 06021).
  • Pentax MV1 booklet (PUB. 06036).
  • Pentax MG booklet (PUB. 06221) (July 1983).
  • Pentax LX booklet (PUB. 06506) (April 1981).
  • The many eyes of Pentax booklet (PUB. 06071).
  • Pentax cameras booklet (PUB. 06091, 32 pages).
  • Asahi Pentax ME booklet (PUB. 06006).
  • Pentax ME Super booklet (PUB. 06731).
  • Asahi Pentax smc Pentax lenses booklet.
  • Pentax lenses and accessories booklet (PUB. 06771) (April 1983).
  • Pentax lenses and accessories booklet (PUB. 08051).
  • Pentax lenses & accessories - A Comprehensive and Versatile Photographic System booklet.
  • Pentax ME Super booklet (PUB. 06726) (March 1981).

Manufacturer description #1

For those not requiring the one stop additional speed offered by the 35mm f/2 model, the SMC Pentax-M 35mm f/2.8 will be found very attractive, as it is approximately 20% lighter in weight and, needless to add, more attractively priced.

Manufacturer description #2

Lighter Weight, Lower Cost. One stop slower than the f/2, this superb 6-group, 6-element lens weighs 1 1/2 ounces less. Field of view and closest focusing distance are the same as those of its faster companion.

Pentax-M series

The second generation of lenses designed for Asahi Pentax 35mm SLR cameras with bayonet mount. Introduced with Asahi Pentax ME and MX in 1976.

  • Miniaturized lenses with average 20% less weight and length than their standard SMC counterparts, but with no sacrifice in quality of construction, resolution, durability or contrast;
  • Robust, all-metal design with recessed focusing distance scale;
  • Fully automatic diaphragm;
  • Support for TTL open-aperture metering;
  • Extremely accurate manual focusing with rubberized focusing ring;
  • Multi-layer anti-reflection coating.

Other wide-angle prime lenses in the Pentax K system

■Pentax K mount (18)
smc Pentax 24mm F/3.5A9 - 80.25m⌀58 1975 ●
smc Pentax 24mm F/2.8A9 - 80.25m⌀52 1977 ●
smc Pentax-A 24mm F/2.8A9 - 80.25m⌀52 1983 ●
smc Pentax 28mm F/3.5A8 - 70.30m⌀52 1976 ●
smc Pentax-M 28mm F/3.5A6 - 60.30m⌀49 1977 ●
smc Pentax-M 28mm F/2.8 [I]A7 - 70.30m⌀49 1977 ●
smc Pentax-M 28mm F/2.8 [II]A7 - 70.30m⌀49 1982 ●
smc Pentax-A 28mm F/2.8A7 - 70.30m⌀49 1983 ●
smc Pentax 28mm F/2A9 - 80.30m⌀52 1976 ●
smc Pentax-M 28mm F/2A8 - 70.30m⌀49 1980 ●
smc Pentax-A 28mm F/2A8 - 70.30m⌀49 1983 ●
smc Pentax 30mm F/2.8A7 - 70.30m⌀52 1975 ●
smc Pentax 35mm F/3.5A5 - 40.35m⌀52 1975 ●
smc Pentax-A 35mm F/2.8A6 - 60.30m⌀49 1983 ●
smc Pentax 35mm F/2A8 - 70.35m⌀52 1975 ●
smc Pentax-M 35mm F/2A7 - 70.30m⌀49 1977 ●
smc Pentax-A 35mm F/2A7 - 70.30m⌀49 1983 ●
smc Pentax-M 40mm F/2.8 • Pancake lensA5 - 40.60m⌀49 1976 ●

Lenses with similar focal length

■Pentax K mount (20)
Chinon Auto 35mm F/2.8 Multi-Coated
akaAgfa Color 35mm F/2.8 Multi-Coated		A5 - 50.30m⌀49 1979 ●
Cosina Voigtlander Ultron 40mm F/2 Aspherical SL II • Pancake lensA6 - 50.38m⌀52 2007 ●
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-W 35mm F/2.8 MC
akaPetri 35mm F/2.8 MC
akaVivitar Auto 35mm F/2.8 VMC		A5 - 50.40m⌀49 1981 ●
Irix 30mm F/1.4 SLRA13 - 110.34m⌀86 2021 ●
Lensbaby Burnside 35mm F/2.8 SLRM6 - 4⌀62 2018 ●
Ricoh XR Rikenon 35mm F/2.8 [II]A6 - 60.35m⌀52 1980 ●
Ricoh XR Rikenon 35mm F/2.8 [I]A6 - 60.30m⌀52 1977 ●
Ricoh Rikenon P 35mm F/2.8A6 - 60.35m⌀52 1984 ●
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 ●
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 Wide-Angle 35mm F/2.8 [II] (s/n 37xxxxxx)A6 - 50.40m⌀52 ●
Kerlee 35mm F/1.2 SLRM11 - 100.30m⌀72 2016 ●
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 ●
Zhongyi Mitakon Creator 35mm F/2 SLR
akaOshiro 35mm F/2 SLR		M7 - 50.25m⌀55 2014 ●
■Pentax K mount (1) · APS-C
Zhongyi Mitakon 35mm F/1.9 SLRM8 - 80.20m⌀49 2012 ●
■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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