smc Pentax-M 100mm F/4 Macro

Macro lens • Film era • Discontinued

  • Announced:
  • · 1977
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · ASAHI OPT. CO. SMC PENTAX-M MACRO 1:4 100mm
  • Class:
  • · Slow full-frame macro lens
  • · Professional model
  • 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
MACRO Macro lens. Designed specially for shooting close-ups of small subjects but can be also used in other genres of photography, not necessarily requiring focusing at close distances. Learn more

Model history (4)

■Asahi Super-Multi-Coated Macro-Takumar 100mm F/4 [43922] • 1:2A5 - 30.45m⌀49 1972 ●
■smc Pentax 100mm F/4 Macro • 1:2A5 - 30.45m⌀52 1975 ●
■smc Pentax-M 100mm F/4 Macro • 1:2A5 - 30.45m⌀49 1977 ●
■smc Pentax-A 100mm F/4 Macro • 1:2A5 - 30.45m⌀49 1984 ●

Specification

Optical design:
35mm full frame
100mm
F/4
5 elements in 3 groups (Cooke triplet derivative)
Pentax K [45.5mm]
24.4° (35mm full frame)
On Pentax K APS-C [1.53x] cameras:
35mm equivalent focal length:
153mm (in terms of field of view)
35mm equivalent speed:
F/6.1 (in terms of depth of field)
Diagonal angle of view:
16.1°
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings only)
6 (six)
Focusing:
0.45m
1:2
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
355g
⌀64.6×77.5mm
Accessories:
Screw-type 49mm
PH-R49 - Screw-type round
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Sources of data

  • Manufacturer's technical data.
  • Asahi Pentax series lenses and accessories booklet (PUB. 06771, 60 pages).
  • smc Pentax-A lenses operating manual.
  • Pentax lenses & accessories booklet (December 1986).
  • 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

Suitable for close-up and macrophotography, as well as normal shooting. Especially useful for shooting nature pictures, for reproduction work and for portraiture. Because of its longer focal length, this lens provides greater magnification than the Macro 50mm f/4.

Manufacturer description #2

Ideal for copying and portraiture. This lens allows twice the working distance of the Macro 50mm for a given image size. The extra distance helps prevent perspective exaggeration with closeups of three-dimensional subjects, and provides greater freedom to arrange lights and reflectors. The optical design of the Macro 100mm lens renders reversing the lens with extension tubes meaningless. Lens construction is 5 elements in 3 groups, closest working distance is less than 1 1/2 feet and the field of view is 24.5°.

Manufacturer description #3

SMC Pentax-M Macro 100mm f/4 offers greater magnifications than the 50mm macro lens in both the macro and general focusing ranges. In the macro range, this highly versatile lens lets you take close-ups of flowers that are beyond the reach of the 50mm lens. It also lets you shoot small insects at greater distances so that they are not frightened away. Moreover, in the general focusing range, you can use it as a regular 100mm telephoto for shooting distant mountains and scenery when focused at infinity, or for portraits when focused at close range.

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 macro lenses in the Pentax K system

■Pentax K mount (8)
smc Pentax 50mm F/4 Macro • 1:2A4 - 30.23m⌀52 1975 ●
smc Pentax-M 50mm F/4 Macro • 1:2A4 - 30.23m⌀49 1977 ●
smc Pentax-A 50mm F/2.8 Macro • 1:2A6 - 40.24m⌀49 1983 ●
smc Pentax 100mm F/4 Macro • 1:2A5 - 30.45m⌀52 1975 ●
smc Pentax 100mm F/4 BellowsM5 - 3⌀52 1975 ●
smc Pentax-A 100mm F/4 Macro • 1:2A5 - 30.45m⌀49 1984 ●
smc Pentax-A 100mm F/2.8 Macro • 1:1A7 - 70.31m⌀58 1985 ●
smc Pentax-A* 200mm F/4 ED Macro • 1:1A10 - 90.55m⌀58 1986 ●

Lenses with similar focal length

■Pentax K mount (15)
Cosina 100mm F/3.5 MC Macro • 1:2
akaPhoenix 100mm F/3.5 Macro
akaPromaster Spectrum 7 100mm F/3.5 MC Macro
akaSoligor 100mm F/3.5 MC Macro
akaVivitar 100mm F/3.5 MC Macro		A5 - 40.43m⌀49 ●
Kino Precision Kiron 105mm F/2.8 MC Macro • 1:1A6 - 60.35m⌀52 1984 ●
Venus Optics Laowa CA-Dreamer 100mm F/2.8 APO Ultra Macro F / K • 2:1M12 - 100.25m⌀67 2019 ●
Panagor Auto 90mm F/2.8 PMC Macro • 1:1A6 - 40.35m⌀62 ●
Ricoh Rikenon P 100mm F/3.5 Macro • 1:2A5 - 40.43m⌀49 ●
Ricoh Rikenon P 105mm F/2.8 Macro • 1:1A6 - 60.35m⌀52 1985 ●
Sigma MF 90mm F/2.8 Multi-Coated Macro ZEN • 1:2A9 - 90.32m⌀52 1988 ●
Soligor C/D 90mm F/2.5 MC Macro • 1:1A6 - 50.35m⌀62 ●
Spiratone Proxitel 90mm F/2.5 Macro • 1:1A6 - 50.35m⌀62 1985 ●
Tokina AT-X 90mm F/2.5 Macro • 1:2A8 - 70.39m⌀55 1983 ●
Vivitar Series 1 90mm F/2.5 VMC Macro (s/n 37xxxxxx) • 1:2A8 - 70.39m⌀58 1975 ●
Vivitar Series 1 Telephoto 105mm F/2.5 VMC Macro (s/n 22xxxxxx) • 1:1A6 - 60.35m⌀52 1989 ●
Vivitar Auto Telephoto 90mm F/2.8 Macro (s/n 28xxxxxx) • 1:1A6 - 40.35m⌀62 1976 ●
Vivitar Telephoto 90mm F/2.5 MC Macro (s/n 28xxxxxx) • 1:1
akaElicar V-HQ 90mm F/2.5 MC Macro
akaRokunar V-HQ 90mm F/2.5 MC Macro		A6 - 50.35m⌀62 1986 ●
Vivitar Telephoto 100mm F/2.8 MC Macro (s/n 22xxxxxx) • 1:1A6 - 60.35m⌀52 1986 ●
■Interchangeable mount (6)
Heinz Kilfitt Munchen Makro-Kilar 90mm F/2.8
akaZoomar Muenchen Macro-Kilar 90mm F/2.8
akaZoomar Muenchen Macro-Zoomatar 90mm F/2.8		P4 - 3-- 1956 ●
Sigma[-XQ] MF 100mm F/2.8 Multi-Coated Macro [YS] • 1:1A7 - 50.33m⌀62 1972 ●
Tamron SP 90mm F/2.5 MC Tele Macro 52B [Adaptall-2] • 1:2A8 - 60.39m⌀49 1979 ●
Tamron SP 90mm F/2.5 Macro 52BB [Adaptall-2] • 1:2A8 - 60.39m⌀55 1984 ●
Tamron SP 90mm F/2.8 Macro 72B [Adaptall-2] • 1:1A10 - 90.29m⌀55 1996 ●
Sima SF 100mm F/2 Soft Focus + Macro [T] • 1:1.5--1 - 10.41m-- 1981 ●

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