Zenzanon-S 200mm f/4.5 (SQ)
Zenza Bronica · Bronica SQ · 1980
Also known as: Zenzanon-S 200mm f/4.5 · Zenzanon S 200mm F4.5 · Bronica SQ 200mm f/4.5 · Zenza Bronica Zenzanon-S 200/4.5 · Bronica Zenzanon S 200mm · ゼンザノンS 200mm F4.5 · ゼンザブロニカ ゼンザノン S 200mm F4.5 · ブロニカ SQ 200mm F4.5
Variants & identification
| Variant | Mount | Years | Serial ranges | Production |
|---|---|---|---|---|
| Zenzanon-S 200mm f/4.5 | Bronica SQ | 1980 | — | — |
- Construction (five elements in five groups), 2.5 m closest focus and the 67 mm screw-in filter are from Japanese Wikipedia, which cites the 1982 edition of the Camera Nenkan, p.223. camera-wiki's SQ lens table gives the same construction and focus distance and adds the 97 mm length and 740 g weight.
- The 1980 start is the SQ body's launch (August 1980, Japanese Wikipedia; camera-wiki agrees on the year); the lens is in the 1982 yearbook, and no earlier or later dated document for the S 200 itself was found. The end date is absent: the lens is missing from Tamron USA's April 1996 SQ price list, which carries only the PS 200, so production had ended by then.
- Minimum aperture, blade count and list price are not given by any source consulted for the S generation. Tamron's 2004 page for the PS 200 gives f/4.5–32 for that lens only.
- The Zenzanon-PS 200mm f/4.5 that succeeded it is a different optical formula (seven elements in five groups, Japanese Wikipedia) and has its own page; the two share focal length, aperture, filter size and closest focus but differ by 10 mm in length and 130 g in weight (camera-wiki).
How to tell them apart
- ZENZANON-S on the name ring, not ZENZANON-PS; the PS version of the same focal length is 107 mm long and 870 g against 97 mm and 740 g here (camera-wiki)
- 67 mm filter thread, shared with every SQ lens from 50 to 250 mm except the PS 50 (77 mm); the S 500 takes 95 mm
- SQ bayonet with the lens-mounted Seiko #0 leaf shutter; a 200mm Zenzanon with no shutter is the focal-plane Bronica S/EC lens (f/4 or f/3.5), and the 200mm f/4.5 lenses marked MC, E or PE are for the 6×4.5 ETR
Zenzanon-S 200mm f/4.5:
- Name ring reads ZENZANON-S 1:4.5 f=200mm; the S suffix is the only generation this page covers
- Five elements in five groups, 2.5 m closest focus, 67 mm screw-in filter (Japanese Wikipedia, citing the 1982 Camera Nenkan); 97 mm long and 740 g (camera-wiki)
- Seiko #0 electronic leaf shutter inside the lens, as on every SQ lens, with a four-claw SQ bayonet; it does not fit the focal-plane Bronica S/EC bodies or the ETR
- Zenzanon-S 200mm f/4.5: The first-generation 200 of the SQ system, one of the Zenzanon-S lenses sold from the SQ's launch in August 1980 and listed in the 1982 Camera Nenkan. Its end date is not documented: the Zenzanon-PS 200mm f/4.5, a seven-element recomputation, replaced it, and only the PS 200 appears in Tamron USA's April 1996 price list.
Specifications
- Construction
- 5 elements / 5 groups
- Aperture range
- f/4.5
- Shutter
- Seiko #0 electronic leaf shutter in the lens, speeds set by the body; mechanical 1/500 without battery power
- Min. focus
- 2.5 m
- Dimensions
- 97 mm long
- Weight
- 740 g
- Filter
- 67 mm
- Years manufactured
- 1980
- Country
- Japan
What reviewers say
No reviews aggregated yet — this family is still in the research queue. Written one? We'd love to index it.
History
The Zenzanon-S 200mm f/4.5 is the long portrait telephoto of the first SQ lens line, sold from the SQ’s launch in August 1980 and recorded in the 1982 Camera Nenkan as a five-element, five-group design focusing to 2.5 m with a 67 mm screw-in filter. camera-wiki’s table adds a length of 97 mm and a weight of 740 g, which makes it the lighter and shorter of the two SQ 200s. Like every SQ lens it carries its own Seiko #0 electronic leaf shutter, timed by the body, with a mechanical 1/500 available when the battery is flat; the four-claw SQ bayonet does not fit the focal-plane Bronica S and EC bodies or the 6×4.5 ETR, whose 200mm f/4.5 lenses are marked MC, E or PE.
Bronica recomputed the lens as the Zenzanon-PS 200mm f/4.5 with seven elements in the same five groups, 10 mm longer and 130 g heavier. Japanese Wikipedia records both constructions from different books, the S from the 1982 yearbook and the PS from the Professional Medium Format Camera book and the Bronica issue of Classic Camera Senka, but no source consulted dates the changeover. Tamron USA’s April 1996 SQ price list carries only the PS 200, so the S version was out of the catalogue by then; the 250 and 500 of the S line followed different paths, the S 250 likewise giving way to a PS, the S 500 staying on sale beside its PS counterpart to the end.
No published review of the S 200 was found in English or Japanese; what exists is dealer copy. Buying notes follow from the construction rather than from testimony: the lens shutter should fire at every speed on a working body and hold 1/500 with the battery removed, the aperture should stop down cleanly, and the five air-spaced groups should be checked for haze. Because the S and PS versions share focal length, aperture, filter thread and closest focus, a listing that does not show the name ring can be either; the PS is the heavier lens with the newer formula, and listings for it are kept on its own page.
Open points: the minimum aperture, blade count and list price of the S generation, and the year it left production.
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 wanted — shot with a Zenzanon-S 200mm f/4.5 (SQ)? We'd love to feature it (with credit).
Live listings
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Listings updated 2026-11-02. Links go to the shop or marketplace that carries the item.