Glass Bodies a variant-level encyclopedia of vintage lenses and cameras by iwillpat

SMC Takumar LS / SMC Pentax 6×7 / 67 90mm f/2.8

Pentax · Pentax 67 · 1971

single source, unconfirmed

Also known as: SMC Pentax 67 90mm f/2.8 · SMC PENTAX 67 90mm F2.8 · smc PENTAX-6x7 1:2.8 90mm · SMC Pentax 6x7 90mm f/2.8 · SMC Takumar 6x7 90mm f/2.8 LS · Takumar 6x7 90mm 2.8 leaf shutter · Pentax 67 90mm f2.8 · Pentax 6x7 90mm F2.8 · ペンタックス67 90mm F2.8 · ペンタックス 6x7 90mm · SMCペンタックス67 90mmF2.8 · SMCタクマー6x7 90mm LS

Variants & identification

Variant Mount Years Serial ranges Production
Super-Multi-Coated Takumar/6×7 LS 90mm f/2.8 (1971, leaf shutter) · 6 elements in 5 groups, 52.5° (lens manual) · Copal 'C' special SLR leaf shutter in the lens, 1/30–1/500, X terminal on the lens; can be left uncocked and used as an ordinary lens through the body's focal-plane shutter Pentax 67 1971 — —
SMC Pentax-6×7 90mm f/2.8 (1980) · 7 elements in 5 groups, 0.65 m closest focus Pentax 67 1980–1989 — —
SMC Pentax 67 90mm f/2.8 (1989) · 7 elements in 5 groups, 0.65 m closest focus (Pentax 67 lens brochure; 67II catalogue) Pentax 67 1989 — —
  1. The leaf-shutter Takumar LS and the shutterless SMC Pentax lens are two optical designs at one focal length and aperture: 6 elements in 5 groups and 0.85 m (LS manual) against 7 elements in 5 groups and 0.65 m (Pentax 67 brochure, 67II catalogue). The site's one-focal-length, one-aperture rule puts them on one page; PentaxForums keeps two entries. The family spec fields describe the 1980/1989 lens.
  2. Dimensions and weight of the 1980/1989 lens are Pentax's: 91.5 × 49 mm, 480 g (brochure, 67II catalogue, Ricoh Imaging list). PentaxForums gives 91.5 × 45 mm and 485 g. The LS's 91.5 × 62 mm and 610 g are from its manual (PentaxForums: 63 mm).
  3. Version years (1971, 1980, 1989) are the PentaxForums lens database's; no Pentax document consulted dates any of them, and no end date is published for the LS or the 67 lens. Blade counts (5 on the LS, 8 on the others) are PentaxForums' alone.
How to tell them apart (expand)
  • Shutter-speed ring, cocking lever, X terminal and cable-release socket on the barrel: the 1971 Takumar LS. None of those: the 1980 or 1989 SMC Pentax lens
  • The SMC Pentax lens is the shortest in the system at 49 mm and one of the lightest at 480 g; the LS is 62 mm and 610 g
  • smc PENTAX-6x7 (1980–89) or smc PENTAX-67 (1989 on) on the name ring; same 7-element optics either way
  • 67 mm filter thread with bayonet-filter lugs on all three; the same size as the 105mm f/2.4 and the 75mm f/2.8 AL

Super-Multi-Coated Takumar/6×7 LS 90mm f/2.8 (1971, leaf shutter):

  • A shutter-speed ring (1/30–1/500), a shutter cocking lever, a cable-release socket and an X flash terminal on the barrel — none of which the 1980 lens has (lens manual)
  • 6 elements in 5 groups, 0.85 m closest focus, 91.5 × 62 mm, 610 g, 67 mm bayonet filters (manual); PentaxForums adds 5 aperture blades
  • Used with the body set to 1/8 s or slower so the focal-plane shutter is open while the leaf shutter fires; uncocked, it works as a normal lens (manual)

SMC Pentax-6×7 90mm f/2.8 (1980):

  • Engraved smc PENTAX-6x7 1:2.8 90mm; no shutter ring, no cocking lever (PentaxForums)
  • 7 elements in 5 groups, 0.65 m, 67 mm filter with bayonet-filter lugs, hood PH-SB67; 91.5 × 49 mm and 480 g by Pentax's figures (PentaxForums: 45 mm, 485 g)

SMC Pentax 67 90mm f/2.8 (1989):

  • Engraved smc PENTAX-67 1:2.8 90mm in the 67 cosmetics (PentaxForums); some Japanese dealers list it as the 90/2.8 'N'
  • Pentax 67II catalogue: 53°, 5群7枚, automatic diaphragm, f/22, 0.65 m, φ67, 91.5 × 49 mm, 480 g, hood PH-SB67 sold separately; sold body-only, case S90-100 extra
  • Ricoh Imaging's archived 67II list: ¥90,000 excluding tax, the cheapest lens on the list

Specifications

Formula
Two designs: 6 elements in 5 groups in the leaf-shutter Takumar LS of 1971 (its manual); 7 elements in 5 groups in the shutterless SMC Pentax 6×7 / 67 lens of 1980 (Pentax 67 lens brochure; 67II catalogue)
Construction
7 elements / 5 groups
Aperture range
f/2.8–f/22
Diaphragm blades
8
Shutter
None on the 1980 and 1989 lenses, which expose through the body's focal-plane shutter; the 1971 Takumar LS carries a Copal 'C' leaf shutter, 1/30–1/500, with electronic flash synchronising at every leaf speed
Min. focus
0.65 m
Dimensions
91.5 × 49 mm
Weight
480 g
Filter
67 mm
Years manufactured
1971
Country
Japan
Coating
Super-Multi-Coated on the 1971 Takumar LS; SMC on the 1980 and 1989 lenses
Original price
¥90,000 excluding tax for the SMC Pentax 67 90mm f/2.8 on Ricoh Imaging's archived 67II lens list (undated; 67II era, 1998–2009). No 1971 or 1980 launch price found.

What reviewers say

History

There are two 90mm f/2.8 lenses for the Pentax 6×7, and they share a page here because they share a focal length, an aperture and a mount, not because they share glass. The first is the Super-Multi-Coated Takumar/6×7 LS 90mm f/2.8 of 1971: 6 elements in 5 groups, 0.85 m closest focus, 610 g, with a Copal leaf shutter in the barrel running 1/30 to 1/500. The second is the SMC Pentax-6×7 90mm f/2.8 of 1980, a shutterless 7-element, 5-group lens focusing to 0.65 m, 49 mm long and 480 g by Pentax’s figures, restyled in 1989 as the SMC Pentax 67 90mm f/2.8 with the same optics. PentaxForums supplies the years; the LS manual, the SMC Pentax 67 brochure and the 67II catalogue supply the numbers.

The LS exists because the 6×7’s focal-plane shutter syncs at 1/30. Its manual sets out the method: body shutter at 1/8 s or slower so the curtains are fully open, flash cord into the lens’s X terminal, leaf speed set on the lens ring, lens cocked with its lever. Electronic flash gives full output at every leaf speed; the slowest speed of 1/30 makes it unsuitable for flash bulbs, as the system booklet also warns for the LS 165mm. Left uncocked, it is an ordinary automatic-diaphragm lens. The cable-release socket on the lens is the other reason people buy it: with the body’s shutter held open it allows multiple exposures on 6×7 and 67 bodies that have no provision for them, which PentaxForums reviewers rate above the flash sync. By the SMC Pentax 67 brochure the 90 LS had gone and the LS 165mm f/4 was the only leaf-shutter lens listed. Wikipedia records both as the system’s two leaf-shutter lenses.

The 1980 lens was, in PentaxForums’ words, Pentax supplementing the 105mm standard with a slightly shorter one, and reviewers have compared the two ever since. The PentaxForums entry averages 9.25: sharper and more contrasty than the 105 at full aperture, best at f/5.6 to f/8, and with a 0.65 m close focus that makes it the system’s handiest lens for detail work, at 480 g the lightest of the common primes. The counts against it are the bokeh, which draws harder edges than the 105, low contrast wide open on slide film in one long-term user’s experience, and the closeness of the two focal lengths. The LS averages 8.29 on its own entry: sharp enough, heavier, with five blades, and its shutter is either the point or a nuisance. Trevor Hong on Emulsive shoots the 67 version as a favourite without saying why, and Thomas Eisl’s system review, not among this site’s indexed reviewers, calls it very compact and good wide open. Ricoh Imaging’s 67II list had it at ¥90,000 excluding tax, the cheapest lens on the list; no launch price for 1971 or 1980 was found.

Buying: decide first whether the shutter is wanted. A leaf-shutter Copal that has sat uncocked for decades can be slow at 1/30 and 1/60; fire it at every speed, listen, and check that the cocking lever returns and that the X terminal and cable socket are intact. On any version check the automatic diaphragm, the 67 mm thread and bayonet-filter lugs, and look through the glass for haze, which the system’s 105 is known for and which affects the same era’s 90s too. The PH-SB67 hood is shared with the 105 and sold separately. The 1980 and 1989 lenses are optically identical, so the 6x7 engraving is not a reason to pay less.

Open questions: the end of production of the LS and the 67 lens; the months of introduction; the LS’s launch price; the blade counts from a Pentax source; and the designers, whom no source consulted names.

Expand Collapse

This history is AI-written, from the sources listed at the foot of the page. Where the record is silent it says so rather than filling the gap — but no human wrote these sentences.

Example photos

Sample photo taken with the SMC Takumar LS / SMC Pentax 6×7 / 67 90mm f/2.8
A very windy day — Pentax 6×7 with the 90mm f/2.8 (One Trick Pony) — One Trick Pony from Stockholm, via Wikimedia Commons (CC BY-SA 2.0)
Sample photo taken with the SMC Takumar LS / SMC Pentax 6×7 / 67 90mm f/2.8
Summer — Pentax 6×7, described by the photographer as the Takumar 90mm f/2.8 (One Trick Pony) — One Trick Pony from Stockholm, via Wikimedia Commons (CC BY-SA 2.0)

Sample photo wanted — shot with a SMC Takumar LS / SMC Pentax 6×7 / 67 90mm f/2.8? We'd love to feature it (with credit).

Live listings

Asking price, USD: a median of $440 across 48 fixed-price listings on 2026-09-19 (middle half $360–$550). First day tracked.

Asking prices from the listings scanned, not sales; junk-flagged rows and auction lots excluded; other currencies are not converted.

Show 37 more listings

Buying from Yahoo! Auctions outside Japan. It is a domestic marketplace: sellers ship within Japan, and most will not register an overseas buyer. A proxy service bids on your behalf, receives the item and forwards it, for a fee and a wait. Buyee, Jauce and ZenMarket each accept a Yahoo auction number directly. Listed alphabetically for information — none is recommended over another, and none of these is an affiliate link.

Listings updated 2026-09-19. Links go to the shop or marketplace that carries the item.

Related: Takumar / SMC Pentax 67 105mm f/2.4 · SMC Pentax 67 165mm f/2.8 · Takumar / SMC Pentax 67 200mm f/4 · SMC Pentax 6×7 / 67 45mm f/4 · SMC Pentax 6×7 / 67 55mm f/4 · Takumar / SMC Pentax 67 75mm f/4.5

Sources (9)

Every page here is assembled from public sources, and the gaps are real ones. If you own this lens, know a serial number I'm missing, or can see where I have it wrong, tell me — corrections, serials and sample photos are all worth having.