Mamiya 65mm f/4.5 Sekor C Lens
The Mamiya 65mm f/4.5 is a 65mm f/4.5 lens designed for Mamiya 645 mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Mamiya 65mm f/4.5 Sekor C Lens
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Lens Overview — Mamiya 65mm f/4.5
Key Features — Mamiya 65mm f/4.5
65mm Medium Format Prime: Provides a wide-angle perspective equivalent to roughly 40mm in 35mm terms when used on the Mamiya 645 system.
Mamiya 645 Native Mount: Designed exclusively for the Mamiya 645 system, allowing direct body attachment without adapters or compromises to image quality.
f/4.5 Maximum Aperture: Offers a workable wide aperture for a medium format wide-angle lens, suitable for landscapes, architecture, and available-light shooting.
Manual Focus Only: Fully manual focus operation suits the deliberate, precise shooting style typical of medium format workflows.
77mm Filter Thread: Large front thread accommodates a wide range of quality filters, useful for landscape and architectural photography requiring graduated ND or polarizing filters.
Solid Build Quality: Substantial construction reflects the robust build expected of professional medium format glass from this era.
Lens Specifications — Mamiya 65mm f/4.5
| Spec | Detail |
|---|---|
| Use Cases | Landscape, Architecture, Studio |
| Lens Type | Wide-Angle |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 65mm |
| Maximum Aperture | f/4.5 |
| Camera System | Medium Format |
| Lens Mount | Mamiya 645 |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 77mm |
Description — Mamiya 65mm f/4.5
The Mamiya 65mm f/4.5 Sekor C is a wide-angle prime lens purpose-built for the Mamiya 645 medium format camera system. With a fixed 65mm focal length and a maximum aperture of f/4.5, this lens offers a dedicated wide perspective for medium format shooters. It attaches directly via the Mamiya 645 mount, making it a native fit for compatible bodies.
Focus is manual only, rewarding photographers who prefer a hands-on, considered approach to composition and focus placement. The 77mm filter thread opens up compatibility with a broad range of filters, useful for landscape and architectural scenarios where polarizers or ND filters are common tools. At 700g, the lens has a solid, substantial presence in-hand.
There is no image stabilization, so steady technique or physical support is advisable when shooting at slower shutter speeds. For Mamiya 645 shooters seeking a reliable wide-angle prime, this Sekor C lens is a straightforward, system-native option.
Pros — Mamiya 65mm f/4.5
- ✓Fixed 65mm focal length provides a dedicated wide-angle perspective on the Mamiya 645 medium format system
- ✓Native Mamiya 645 mount ensures direct, adapter-free compatibility with Mamiya 645 bodies
- ✓Large 77mm filter thread accommodates a wide selection of filters for creative control
Cons — Mamiya 65mm f/4.5
- ✗Maximum aperture of f/4.5 is relatively modest, limiting performance in low-light conditions
- ✗Manual focus only — no autofocus support for fast-moving subjects
- ✗No image stabilization, requiring careful technique or support for sharp handheld shots
Videos — Mamiya 65mm f/4.5
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