Zenzanon-PE Macro 105mm f/4.5 1:1 (ETR)
Zenza Bronica · Bronica ETR · 1988
Also known as: Bronica ETR 105mm f/4.5 Macro · Bronica ETRSi 105mm F4.5 Macro PE · Zenzanon-PE Macro 105mm f/4.5 · Zenzanon PE 105mm F4.5 Macro · Zenzanon-PE 105mm f/4.5 1:1 Macro · Zenza Bronica Zenzanon PE 105mm 4.5 Macro · Bronica 105mm f/4.5 Macro Zenzanon-PE lens for ETR · ゼンザブロニカ ゼンザノン PE マクロ 105mm F4.5 · ゼンザノン PE 105mm F4.5 マクロ · ブロニカ ETR 105mm F4.5 マクロ
Variants & identification
| Variant | Mount | Years | Serial ranges | Production |
|---|---|---|---|---|
| Zenzanon-PE Macro 105mm f/4.5 | Bronica ETR | 1988–2004 | — | — |
- Element and group count, 0.35 m closest focus at 1:1, 67 mm filter, 920 g, the included hood and the price are from Tamron USA's 2004 product page for the lens; Japanese Wikipedia gives the same 8群9枚, 0.35 m and φ67, citing プロフェッショナル中判カメラ p.112 and カメラ・クラシックカメラ専科 No.57, and Tamron Japan's English ETRSi page lists the PE 105 macro at 9 elements in 8 groups.
- The introduction year is not established. The lens exists only as a PE, and the PE line began with the ETRSi in December 1988 (Japanese Wikipedia), so 1988 is a floor, not a launch date; the end is the end of Bronica production in 2004.
- Aperture blade count and barrel dimensions are not given by any source found.
How to tell them apart
- The 1:1 macro: 67 mm filter where every other ETR prime takes 62 mm (or 58 mm on the first 75), 920 g, closest focus 0.35 m. The 100mm f/4 Macro is lighter, takes 62 mm and stops at 0.61 m; the 105mm f/3.5 is the non-macro portrait lens of the MC/E years
- A Bronica four-claw ETR bayonet with a Seiko #0 leaf shutter inside the lens, mounting only with the shutter cocked; fits every ETR body from 1976 to 2004 and nothing else. Not the Zenzanon-PS Macro 110mm f/4 of the SQ or the Zenzanon-PG Macro 110mm f/4 of the GS-1
Zenzanon-PE Macro 105mm f/4.5:
- Engraved ZENZANON-PE Macro, with half-stop aperture clicks; a 67 mm filter thread, the only ETR prime with one (Tamron USA 2004; Japanese Wikipedia)
- 920 g and a long barrel that extends to 1:1 on its own helicoid; supplied with a bayonet hood (Tamron USA 2004)
- Zenzanon-PE Macro 105mm f/4.5: The only version. A PE-only lens, so 1988 is the earliest it could have appeared; no announcement or first catalogue listing was found. It was in Tamron's last price list of 2004.
Specifications
- Formula
- 9 elements in 8 groups (Tamron USA 2004; Japanese Wikipedia); design type not published
- Construction
- 9 elements / 8 groups
- Aperture range
- f/4.5
- Shutter
- Seiko #0 electronically controlled between-lens leaf shutter, 8s–1/500 and T (B on the ETRSi), mechanical 1/500 without a battery; speeds set on the body
- Min. focus
- 0.35 m
- Weight
- 920 g
- Filter
- 67 mm
- Years manufactured
- 1988–2004
- Country
- Japan
- Coating
- Multicoated (PE-line multicoating)
- Original price
- US$1,857 list in Tamron USA's 2004 price list, the dearest ETR prime short of the telephotos; the PE 75 was $1,147 (today $3,080)
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-PE Macro 105mm f/4.5 is the Bronica ETR system’s true macro, the only lens on the mount that reaches life size without extension tubes, and a lens of the PE generation that began with the ETRSi in December 1988. Tamron USA’s 2004 product page gives nine elements in eight groups, focusing on its own helicoid from infinity to 0.35 m at 1:1, a 67 mm filter thread, 920 g and a bayonet hood in the box; Japanese Wikipedia repeats the formula, distance and filter from プロフェッショナル中判カメラ. It is the only ETR prime with a 67 mm thread, which separates it at a glance from the 100mm f/4 Macro (62 mm, 0.61 m) and from the non-macro 105mm f/3.5 of the MC and E years, both of which it displaced: the 100 is absent from Tamron’s last list, where the 105 macro stood at US$1,857, the dearest ETR lens short of the telephotos and zooms.
The shutter is the Seiko #0 electronically controlled between-lens unit of every ETR lens, set from the body between 8 s and 1/500 with T, and B on the ETRSi, firing mechanically at 1/500 when the battery is flat; the lens mounts only when cocked. As a PE lens it has half-stop aperture clicks. On the 42.5 × 55.1 mm frame its focal length is about a 63 mm equivalent, so at ordinary distances it doubles as a short portrait lens, though at 920 g it is the heaviest ETR prime below the 250: the one hands-on remark found, on Photrio, calls it “one heavy beast of a lens”.
No review was found, and its introduction year is unrecorded: the PE line’s start in 1988 is the earliest it could date from. Left open: the launch year, the diaphragm blade count, the barrel dimensions, and any serial-number information.
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-PE Macro 105mm f/4.5 1:1 (ETR)? We'd love to feature it (with credit).
Live listings
- ZENZA BRONICA ZENZANON-PE 105mm F4.5 MACRO
- ★極上品★ Bronica ブロニカ zenzanon PE 105mm f4.5 Macro 3069590 60size
- ZENZA BRONICA ZENZANON-PE 105mm F4.5 MACRO
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