Zenzanon-PG 150mm f/4
Zenza Bronica Β· Bronica GS Β· 1983
Also known as: Zenzanon-PG 150mm f/4 Β· Zenzanon PG 150mm F4 Β· Zenzanon-PG 150/4 Β· Bronica PG 150mm f4 Β· Zenza Bronica Zenzanon-PG 150mm Β· Bronica GS-1 150mm f/4 Β· Bronica GS 150mm F4 Β· γΌγ³γΆγγ³ PG 150mm F4 Β· γΌγ³γΆγγγγ« PG 150mm Β· γΌγ³γΆγγ³PG 150mm Β· γγγγ« GS-1 150mm
Variants & identification
| Variant | Mount | Years | Serial ranges | Production |
|---|---|---|---|---|
| Zenzanon-PG 150mm f/4 (1983β2002) | Bronica GS | 1983β2002 | β | About 5,000 (camera-wiki) |
- Construction (5 elements in 5 groups), closest focus and filter thread are from γ«γ‘γ©εΉ΄ι'84 p.256 as quoted by Japanese Wikipedia, and agree with camera-wiki and Tamron Japan. Length, diameter and weight (62.0 Γ 87mm, 650g) are Tamron Japan's and camera-wiki's shared figures; F4β32 is Tamron Japan's aperture range.
- camera-wiki calls it a long-focus design rather than a telephoto; the five single elements support that, and no source names the type further.
- The production figure of about 5,000 is camera-wiki's and is not sourced on that page.
How to tell them apart
- ZENZANON-PG on the front ring: PG is the GS-1 designation, as PS is the SQ's and PE the ETR's, and the four-claw GS bayonet fits no other Bronica body (camera-wiki)
- No shutter-speed ring: the Seiko #0 shutter inside is set from the dial on the body (Tamron Japan)
- The shortest PG lens of all at 62mm, shorter than the 100mm, on the 87mm barrel with a 72mm filter; 650g (Tamron Japan)
- Zenzanon-PG 150mm f/4 (1983β2002): The only version, in the launch list of 1983 (camera-wiki; γ«γ‘γ©εΉ΄ι'84 via Japanese Wikipedia) and made until June 2002. No revision is recorded.
Specifications
- Formula
- Long-focus design of 5 single elements, not a telephoto (camera-wiki)
- Construction
- 5 elements / 5 groups
- Aperture range
- f/4βf/32
- Shutter
- Seiko #0 electronic leaf shutter in the lens, 16sβ1/500 plus T and B, timed from the GS-1 body; mechanical fallback of about 1/500 without a battery (Tamron Japan)
- Min. focus
- 1.5 m
- Dimensions
- 87 Γ 62 mm
- Weight
- 650 g
- Filter
- 72 mm
- Years manufactured
- 1983β2002
- Country
- Japan
- Original price
- $2,020 (Tamron USA list, April 1996); $2,289 (Tamron USA, 2004) (today $4,040)
What reviewers say
- Adrian Cowderoy, adriancowderoy.com (December 2011) (blog) β With the 65mm, the lens he keeps when travelling light, carried since 1988; lens quality 'has been a joy', with samples linked rather than described.
- revdocjim, Chemical Cameras (c.2010β11) (blog) β The short telephoto of his five-lens kit, with no separate verdict; the PG lenses as a group were 'so good' that Bronica carried their technology to its other lines.
History
The portrait lens of the GS-1, in the launch list of 1983, and the smallest lens in the line: five single elements in a barrel only 62mm long, shorter than the standard 100mm, weighing 650g on the common 87mm barrel with a 72mm filter. camera-wiki is careful to call it a long-focus design rather than a telephoto, which the five-group layout and the compact barrel bear out; it focuses to 1.5m, stops down to f/32, and carries the Seiko #0 shutter that every PG lens has.
Tamron listed it at $2,020 in April 1996, level with the 65mm, and at $2,289 in 2004. About 5,000 were made, the second-largest run after the 100mm. No change over nineteen years is recorded.
It is the lens Adrian Cowderoy packs with the 65mm when he travels light, as he has since 1988, and one of the five revdocjim shot for Chemical Cameras; neither writes about it on its own, and no review of it alone has been found.
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 β but no human wrote these sentences.
Example photos
Sample photo wanted β shot with a Zenzanon-PG 150mm f/4? 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.