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Mamiya 210mm f/4 Sekor C Lens

The Mamiya 210mm f/4 is a 210mm f/4 lens designed for Mamiya 645 mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Mamiya 210mm f/4 Sekor C Lens

Mamiya 210mm f/4 Sekor C Lens

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Lens Overview — Mamiya 210mm f/4

The Mamiya 210mm f/4 Sekor C is a prime telephoto lens built specifically for the Mamiya 645 medium format system. With a fixed focal length of 210mm and a maximum aperture of f/4, this lens occupies a classic telephoto position well-suited to portrait, studio, and detail-oriented medium format shooting. As a fully manual focus lens, it places complete optical control in the hands of the photographer, which suits deliberate, methodical shooting styles common in medium format work.

The lens accepts 67mm filters, offering a relatively accessible filter size for its format class. Weighing 900g, it has a substantial build consistent with medium format telephoto optics of its era. There is no image stabilization, which is typical for lenses of this design and generation.

The Mamiya 645 mount restricts use to compatible Mamiya 645 bodies, making this a system-specific investment. For photographers already working within the Mamiya 645 ecosystem, the Sekor C 210mm f/4 represents a focused, single-purpose telephoto option with a straightforward specification set designed around image quality and manual control.

Key Features — Mamiya 210mm f/4

210mm Telephoto Prime: Fixed 210mm focal length delivers a natural telephoto perspective well-suited to portraits, detail work, and studio shooting on medium format.

f/4 Maximum Aperture: Provides usable light-gathering capability for a medium format telephoto, while keeping size and weight manageable.

Mamiya 645 Mount: Purpose-built for the Mamiya 645 system, ensuring native compatibility with all Mamiya 645 series bodies.

Manual Focus Design: Fully manual focus operation suits the deliberate, methodical shooting style typical of medium format work.

Medium Format Coverage: Image circle covers the 645 medium format frame, delivering the resolution and tonal depth the format is known for.

67mm Filter Thread: Accepts widely available 67mm filters, making it practical to use polarizers, ND filters, and other accessories.

Lens Specifications — Mamiya 210mm f/4

Mamiya 210mm f/4 full specifications
SpecDetail
Use CasesPortrait, Landscape, Studio
Lens TypePrime
FormatMedium Format
Zoom/PrimePrime
Focal Length210mm
Maximum Aperturef/4
Camera SystemMedium Format
Lens MountMamiya 645
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread67mm

Description — Mamiya 210mm f/4

The Mamiya 210mm f/4 Sekor C is a prime telephoto lens engineered for the Mamiya 645 medium format system. Operating at a fixed 210mm focal length with a maximum aperture of f/4, it is designed for photographers who value deliberate, manual-controlled shooting in a medium format context. Focusing is entirely manual, placing emphasis on precise technique and considered composition.

The lens features a 67mm filter thread, providing convenient compatibility with a wide range of standard filters. At 900g, the lens has a solid, substantial presence consistent with medium format telephoto optics. There is no image stabilization, so a tripod or steady support is advisable for critical work.

Built exclusively around the Mamiya 645 mount, this lens is a system-specific tool that integrates directly with compatible Mamiya 645 bodies. For medium format photographers working within the Mamiya 645 ecosystem, the Sekor C 210mm f/4 delivers a straightforward telephoto option with a clean, unambiguous specification set.

Pros — Mamiya 210mm f/4

  • ✓Fixed 210mm focal length provides a dedicated telephoto perspective for the Mamiya 645 system
  • ✓Maximum aperture of f/4 offers usable light-gathering for a medium format telephoto prime
  • ✓67mm filter thread size is a widely available and practical filter diameter

Cons — Mamiya 210mm f/4

  • ✗Manual focus only — no autofocus capability for faster or spontaneous shooting situations
  • ✗No image stabilization, requiring steady technique or support for handheld use
  • ✗At 900g, the lens adds significant weight to a medium format kit

Videos — Mamiya 210mm f/4

Mamiya 645 – Legendary cine lenses on a budget – Epic Episode #8 — Media Division

Resources & Downloads — Mamiya 210mm f/4

Frequently Asked Questions — Mamiya 210mm f/4

Which camera bodies is this lens compatible with?+
The Mamiya 210mm f/4 Sekor C is designed for the Mamiya 645 mount, making it compatible with Mamiya 645 system bodies. It is a system-specific lens and does not natively fit other mounts.
Does this lens support autofocus?+
No. This lens is manual focus only. Photographers must focus using the lens's focus ring, which suits the deliberate pacing of medium format shooting.
What filter size does the Mamiya 210mm f/4 Sekor C use?+
The lens uses a 67mm filter thread, which is a common and widely available filter diameter, making it straightforward to source compatible filters.
How heavy is this lens?+
The Mamiya 210mm f/4 Sekor C weighs 900g. This is a substantial lens, and photographers should account for this when planning handheld or travel setups.
Does this lens have image stabilization?+
No, this lens does not include image stabilization. Users should plan for stable shooting conditions or support equipment when working at longer exposures.

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