Mamiya 50mm f/6.3 Sekor Lens
The Mamiya 50mm f/6.3 is a 50mm f/6.3 lens designed for Mamiya 645 mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Mamiya 50mm f/6.3 Sekor Lens
Get notified when one lists.
We'll text or email you the moment a Mamiya 50mm f/6.3 Sekor Lens is listed on GearFocus.
Have a Mamiya 50mm f/6.3 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 — Mamiya 50mm f/6.3
Key Features — Mamiya 50mm f/6.3
50mm Medium Format Prime: Fixed 50mm focal length on the Mamiya 645 system provides a wide-angle perspective equivalent to roughly 31mm in 35mm terms, well suited to landscapes and architecture.
Mamiya 645 Mount: Native Mamiya 645 mount ensures direct, reliable compatibility with Mamiya 645 film and digital bodies without adapters.
f/6.3 Maximum Aperture: Modest maximum aperture reflects a design priority toward optical sharpness and compact construction over low-light speed.
Manual Focus Design: Fully manual focus operation suits deliberate, methodical shooting workflows where precise focus placement is essential.
Medium Format Imaging Circle: Covers the larger 645 film frame, delivering the tonal depth and fine detail characteristic of medium format capture.
600g Build Weight: At 600g, the lens has a substantial but manageable presence that balances well on standard Mamiya 645 bodies.
Lens Specifications — Mamiya 50mm f/6.3
| Spec | Detail |
|---|---|
| Use Cases | Landscape, Architecture, Studio |
| Lens Type | Prime |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 50mm |
| Maximum Aperture | f/6.3 |
| Camera System | Medium Format |
| Lens Mount | Mamiya 645 |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Weight | 600g |
Description — Mamiya 50mm f/6.3
The Mamiya 50mm f/6.3 Sekor is a prime, wide-angle lens built specifically for the Mamiya 645 mount. With a fixed 50mm focal length and a maximum aperture of f/6.3, it occupies a clear niche within the Mamiya 645 ecosystem as a dedicated wide-angle option. The lens operates entirely in manual focus, putting full control in the hands of the photographer and rewarding a methodical approach to image-making.
Designed as a medium format lens, it is built to cover the imaging circle required by Mamiya 645 cameras. At 600g, the lens has a solid, purposeful build weight. No image stabilization is present, so a steady hand or support equipment is advisable.
The Mamiya 645 mount ensures seamless native integration with compatible bodies, and this Sekor lens stands as a straightforward wide-angle prime choice for photographers already working within that system.
Pros — Mamiya 50mm f/6.3
- ✓Prime 50mm focal length offers a fixed, wide-angle perspective suited for expansive compositions on the Mamiya 645 system
- ✓Medium format lens format delivers the larger imaging circle characteristic of the Mamiya 645 system
- ✓Manual focus design (focusType: Manual) gives the photographer precise, deliberate control over focus
Cons — Mamiya 50mm f/6.3
- ✗Maximum aperture of f/6.3 is relatively narrow, limiting performance in lower light conditions
- ✗Manual focus only — no autofocus capability for faster or spontaneous shooting scenarios
- ✗No image stabilization (imageStabilization: None), requiring steady technique or support
Videos — Mamiya 50mm f/6.3
The Second Biggest Mamiya RB67 Lens - 360mm f/6.3 Sekor — William Sheepskin