Mamiya AF 120mm f/4 Sekor D Macro Lens
The Mamiya AF 120mm f/4 Macro is a 120mm f/4 lens designed for Mamiya 645 mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Mamiya AF 120mm f/4 Sekor D Macro Lens
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Lens Overview — Mamiya AF 120mm f/4 Macro
Key Features — Mamiya AF 120mm f/4 Macro
120mm Macro Prime: A dedicated 1:1 macro prime that also serves as a versatile short telephoto for portraits and product photography on medium format.
Mamiya 645 Mount: Native mount ensures full electronic compatibility with Mamiya 645 autofocus camera bodies without adapters.
Autofocus & Manual Focus: Supports both AF and manual focus operation, giving photographers precise control over focus placement in shallow-depth macro situations.
f/4 Maximum Aperture: Provides a workable aperture for macro and portrait shooting, delivering subject separation on the medium format frame.
Medium Format Coverage: Designed to cover the larger medium format imaging circle, delivering the fine detail and tonal depth the format is known for.
67mm Filter Thread: Accepts widely available 67mm filters, making it straightforward to use polarizers, ND filters, or close-up accessories.
Lens Specifications — Mamiya AF 120mm f/4 Macro
| Spec | Detail |
|---|---|
| Use Cases | Macro, Portrait, Product |
| Lens Type | Macro |
| Format | Medium Format |
| Zoom/Prime | Prime |
| Focal Length | 120mm |
| Maximum Aperture | f/4 |
| Camera System | Medium Format |
| Lens Mount | Mamiya 645 |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 67mm |
Description — Mamiya AF 120mm f/4 Macro
The Mamiya AF 120mm f/4 Sekor D Macro is a prime lens built exclusively for the Mamiya 645 mount, placing it squarely in the medium format ecosystem. With a fixed focal length of 120mm and a maximum aperture of f/4, it is engineered for macro and close-up photography while remaining versatile enough for portrait and product applications. The lens supports both autofocus and manual focus, allowing photographers to choose the mode that best suits their shooting style — autofocus for faster-paced work, manual for the critical precision that macro photography demands.
A 67mm filter thread means compatibility with a broad range of widely available filters. At 1000g, the build is solid and professional in feel. Image stabilization is not included, so photographers working at macro distances should plan for tripod or support use to maintain sharpness. This lens is a strong, purpose-driven option for Mamiya 645 system users pursuing serious macro and detail-oriented imaging work.
Pros — Mamiya AF 120mm f/4 Macro
- ✓Dedicated macro lens design in a 120mm prime configuration for the medium format system
- ✓Supports both autofocus and manual focus, offering flexibility for precise macro focusing
- ✓Mamiya 645 mount ensures direct, native compatibility with Mamiya 645 camera bodies
Cons — Mamiya AF 120mm f/4 Macro
- ✗No image stabilization, making handheld macro shots more challenging without support
- ✗At 1000g, the lens is heavy and may add noticeable weight to a shooting kit
- ✗Maximum aperture of f/4 is relatively modest, limiting light-gathering in low-light macro situations
Videos — Mamiya AF 120mm f/4 Macro
Use Any Lens for Macro Photography — Fstoppers