Mamiya Sekor Z 180mm f/4.5 W-N Lens
The Mamiya 180mm f/4.5 W-N is a 180mm f/4.5 lens designed for Mamiya RZ mount cameras. Used copies start from $95.22 on GearFocus, with buyer protection on every purchase.
Mamiya Sekor Z 180mm f/4.5 W-N Lens
Used Mamiya 180mm f/4.5 W-N Listings on GearFocus
Lens Overview — Mamiya 180mm f/4.5 W-N
Key Features — Mamiya 180mm f/4.5 W-N
180mm Medium Format Prime: A fixed focal length designed to cover the larger image circle of medium format, ideal for portraits, studio work, and detail photography.
Mamiya RZ Mount: Native mount for the Mamiya RZ67 system ensures full mechanical compatibility without adapters or compromises.
f/4.5 Maximum Aperture: Provides a workable exposure latitude in controlled studio and natural light conditions typical of medium format shooting.
Manual Focus Design: Fully manual focus operation suits the deliberate, tripod-based workflows that medium format photography demands.
77mm Filter Thread: Accepts widely available 77mm filters for polarizers, ND, and other accessories without step-up rings.
1,100g Solid Build: Substantial construction consistent with professional medium format glass of this era, built to withstand regular studio use.
Lens Specifications — Mamiya 180mm f/4.5 W-N
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Studio, Product |
| Lens Type | Telephoto |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 180mm |
| Maximum Aperture | f/4.5 |
| Camera System | Medium Format |
| Lens Mount | Mamiya RZ |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 77mm |
Description — Mamiya 180mm f/4.5 W-N
The Mamiya Sekor Z 180mm f/4.5 W-N is a medium format telephoto prime lens built for the Mamiya RZ mount system. With a fixed 180mm focal length and a maximum aperture of f/4.5, it delivers a consistent shooting experience suited to controlled environments where careful composition and manual technique are prioritized. Focusing is manual only, which aligns naturally with the deliberate pace of medium format photography.
The lens features a 77mm filter thread, offering broad compatibility with standard filter accessories without the need for adapters. Weighing in at 1100g, it is a solidly built piece of glass that benefits from tripod support during use. Image stabilization is not present, so a steady platform and appropriate technique are recommended.
This lens is a purpose-built option for photographers already invested in the Mamiya RZ system who need a dedicated telephoto prime in their kit.
Pros — Mamiya 180mm f/4.5 W-N
- ✓Dedicated Mamiya RZ mount ensures native compatibility with the RZ camera system
- ✓180mm prime focal length offers a focused, distraction-free shooting experience
- ✓77mm filter thread is a common standard, making filter accessories easy to source
Cons — Mamiya 180mm f/4.5 W-N
- ✗Manual focus only — no autofocus support for faster-paced shooting scenarios
- ✗Maximum aperture of f/4.5 is relatively modest, limiting performance in low-light situations
- ✗At 1100g, the lens is heavy and best suited to tripod or supported use
Videos — Mamiya 180mm f/4.5 W-N
Shooting with a 180mm Medium Format Lens! — Willem Verbeeck
Frequently Asked Questions — Mamiya 180mm f/4.5 W-N
What camera mount does this lens use?+
This lens is designed for the Mamiya RZ mount. It is built specifically for that camera system and is not listed as compatible with other mounts without an adapter.
Does this lens have autofocus?+
No. The Mamiya Sekor Z 180mm f/4.5 W-N is a manual focus lens. All focusing must be done by hand, which is standard for lenses of this era and format.
What filter size does this lens accept?+
The lens has a 77mm filter thread, which is a widely used size that makes it easy to find compatible filters, polarizers, and other accessories.
How heavy is this lens?+
The lens weighs 1100g. This is a significant weight, and use with a sturdy tripod or support system is advisable for comfortable, sharp shooting sessions.
Does this lens have image stabilization?+
No, image stabilization is listed as None. This is consistent with medium format lenses of this generation, and photographers should plan their technique and shutter speeds accordingly.







