Mamiya 645 55mm f/2.8 Sekor C N Lens
The Mamiya 55mm f/2.8 is a 55mm f/2.8 lens designed for Mamiya 645 mount cameras. Used copies start from $231.23 on GearFocus, with buyer protection on every purchase.
Mamiya 645 55mm f/2.8 Sekor C N Lens
Used Mamiya 55mm f/2.8 Listings on GearFocus
Lens Overview — Mamiya 55mm f/2.8
Key Features — Mamiya 55mm f/2.8
55mm Standard Focal Length: Equivalent to a moderate wide-to-normal perspective on medium format, making it suitable for portraits, street, and general-purpose shooting.
f/2.8 Maximum Aperture: Allows shooting in lower light conditions and provides meaningful depth-of-field control for a medium format prime.
Medium Format Coverage: Designed to cover the 645 format's larger image circle, delivering the tonality and detail characteristic of medium format systems.
Manual Focus Design: Fully manual focus operation suits the deliberate, methodical pace typical of medium format shooting workflows.
Native Mamiya 645 Mount: Direct native compatibility with Mamiya 645 system bodies ensures reliable mechanical and optical performance without adapters.
58mm Filter Thread: A widely common filter diameter, making it easy to pair with circular polarizers, ND filters, and other standard accessories.
Lens Specifications — Mamiya 55mm f/2.8
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Landscape, Studio |
| Lens Type | Prime |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 55mm |
| Maximum Aperture | f/2.8 |
| Camera System | Medium Format |
| Lens Mount | Mamiya 645 |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Filter Thread | 58mm |
Description — Mamiya 55mm f/2.8
The Mamiya 645 55mm f/2.8 Sekor C N is a prime lens designed natively for the Mamiya 645 camera system. Operating as a standard focal length option within the medium format world, it covers a versatile angle of view suited to a broad variety of photographic work. Its maximum aperture of f/2.8 allows photographers to manage exposure in varied lighting conditions and shape depth of field with intention.
Focusing is manual, placing full control in the hands of the photographer — a deliberate approach well-suited to medium format shooting rhythms. The lens accepts 58mm filters, a widely available size that keeps filter costs accessible. At 400g, it offers a manageable weight within the medium format category.
Mounted via the Mamiya 645 lens mount, it integrates directly and natively with compatible Mamiya 645 bodies. For photographers already invested in the Mamiya 645 system looking for a capable standard prime, the Sekor C N 55mm f/2.8 is a focused, straightforward option.
Pros — Mamiya 55mm f/2.8
- ✓Maximum aperture of f/2.8 provides solid light-gathering for a medium format prime
- ✓55mm standard focal length offers versatile framing across a range of subjects
- ✓Native Mamiya 645 mount ensures direct compatibility with Mamiya 645 system bodies
Cons — Mamiya 55mm f/2.8
- ✗Manual focus only — no autofocus capability, which demands more time and attention during shooting
- ✗No image stabilization, as confirmed in specifications
- ✗Limited to Mamiya 645 mount bodies, restricting use to that specific camera system
Videos — Mamiya 55mm f/2.8
Mamiya 645 – Legendary cine lenses on a budget – Epic Episode #8 — Media Division