Bronica 45mm f/4 Zenzanon RF Lens
The Bronica 45mm f/4 is a 45mm f/4 lens designed for Bronica RF mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Bronica 45mm f/4 Zenzanon RF Lens
Get notified when one lists.
We'll text or email you the moment a Bronica 45mm f/4 Zenzanon RF Lens is listed on GearFocus.
Have a Bronica 45mm f/4 sitting in your bag?
You'd be the first listing for this model.
Serious buyers are already watching — list yours in minutes.
Available Now on GearFocus
Lens Overview — Bronica 45mm f/4
Key Features — Bronica 45mm f/4
45mm Medium Format Prime: Provides a wide-angle field of view on the medium format frame, equivalent to roughly 28mm in 35mm terms, suited to landscapes, architecture, and environmental subjects.
f/4 Maximum Aperture: Offers usable light-gathering capability in a compact wide-angle medium format design without the size and weight penalty of faster optics.
Bronica RF Mount: Designed exclusively for the Bronica RF rangefinder system, ensuring native, purpose-built compatibility with cameras in that lineup.
Manual Focus Design: Focus is operated entirely by hand, aligning naturally with the rangefinder shooting workflow of the Bronica RF system.
Zenzanon RF Optics: Part of Bronica's dedicated RF lens family, engineered specifically for the medium format rangefinder system rather than adapted from another mount.
Wide-Angle Perspective: The 45mm focal length on medium format delivers a broad view of a scene, making it well suited to capturing expansive environments within a single frame.
Lens Specifications — Bronica 45mm f/4
| Spec | Detail |
|---|---|
| Use Cases | Landscape, Architecture, Travel |
| Lens Type | Wide-Angle |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 45mm |
| Maximum Aperture | f/4 |
| Camera System | Medium Format |
| Lens Mount | Bronica RF |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
Description — Bronica 45mm f/4
The Bronica 45mm f/4 Zenzanon RF is a wide-angle prime lens built exclusively for the Bronica RF mount and designed for medium format photography. With a fixed 45mm focal length, it delivers a consistent wide-angle perspective without any zoom adjustment. The f/4 maximum aperture provides the baseline light control you would expect from a medium format wide-angle prime.
Focus is manual only, with no autofocus system, which suits the deliberate, measured pace of rangefinder-style shooting. Image stabilization is not included, so steady handholding technique is essential. The Bronica RF mount means this lens is purpose-matched to the Bronica RF camera system, offering direct compatibility without adapters or compromises. For photographers working within the Bronica RF ecosystem who need a wide-angle prime option, the Zenzanon RF 45mm f/4 fills that role with a clearly defined set of optical and mechanical specifications.
Pros — Bronica 45mm f/4
- ✓Fixed 45mm focal length provides a dedicated wide-angle perspective on medium format
- ✓Maximum aperture of f/4 offers usable light-gathering for a medium format wide-angle prime
- ✓Prime lens design (no zoom) delivers a single, consistent focal length
Cons — Bronica 45mm f/4
- ✗Manual focus only — no autofocus support for faster or more spontaneous shooting situations
- ✗No image stabilization, which places the full burden of camera steadiness on the photographer
- ✗Bronica RF mount limits this lens to a specific and relatively narrow range of compatible camera bodies
Videos — Bronica 45mm f/4
Camera Geekery: The Bronica RF645 — Japan Camera Hunter