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Mamiya TLR 135mm f/4.5 Sekor Lens

The Mamiya 135mm f/4.5 is a lens from Mamiya. Used copies start from $120.41 on GearFocus, with buyer protection on every purchase.

Mamiya TLR 135mm f/4.5 Sekor Lens

Mamiya TLR 135mm f/4.5 Sekor Lens

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Mamiya TLR 135mm f4.5 Sekor Lens Black

Condition: Good

Product Highlights

  • 135mm telephoto focal length
  • f/4.5 maximum aperture
  • Compatible with Mamiya TLR cameras
  • Vintage design with robust build

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Used Mamiya 135mm f/4.5 Listings on GearFocus

Mamiya TLR 135mm f4.5 Sekor Lens Black
Mamiya TLR 135mm f4.5 Sekor Lens Black

Good

$120.41

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Lens Overview — Mamiya 135mm f/4.5

The Mamiya TLR 135mm f/4.5 Sekor is a vintage medium format lens manufactured during the 1960s, designed exclusively for the Mamiya twin-lens reflex camera system. Mounted via the Mamiya TLR lens mount, this is an interchangeable lens built specifically for Mamiya's TLR platform — a relatively uncommon feature in the twin-lens reflex world, where most cameras of the era featured fixed lenses. The 135mm focal length positions this lens as a longer option within the Mamiya TLR interchangeable lens lineup, and the f/4.5 maximum aperture is characteristic of medium format glass from this period.

Operation is fully manual focus, consistent with the design conventions of the era. For photographers working with Mamiya TLR bodies and seeking a longer focal length than a standard lens, this Sekor-branded optic represents a period-correct, system-native option. Its vintage manufacture date places it firmly in the classic film photography era, making it a compelling choice for collectors and working film photographers alike who shoot with compatible Mamiya TLR equipment.

Key Features — Mamiya 135mm f/4.5

135mm Medium Format Focal Length: Provides a longer telephoto perspective on medium format film, useful for portraits and tighter compositions.

f/4.5 Maximum Aperture: Characteristic of medium format glass from this era, offering adequate light gathering for film photography.

Mamiya TLR Mount: Designed exclusively for Mamiya's twin-lens reflex system, ensuring direct, system-correct compatibility with compatible Mamiya TLR bodies.

Interchangeable Lens Design: Unlike most TLR cameras of the era which had fixed lenses, Mamiya's system allowed lens swapping — a rare and practical feature for medium format film shooters.

Manual Focus Operation: Fully manual focus control, consistent with the design and workflow conventions of 1960s film photography.

1960s Vintage Construction: Manufactured during the 1960s, making it a period-correct optic for collectors and working film photographers using Mamiya TLR equipment.

Lens Specifications — Mamiya 135mm f/4.5

Mamiya 135mm f/4.5 full specifications
SpecDetail
Use CasesPortrait, Studio, Creative Effects
Lens TypePrime
Lens MountMamiya TLR
Focus TypeManual Focus

Description — Mamiya 135mm f/4.5

The Mamiya TLR 135mm f/4.5 Sekor Lens is a vintage medium format optic built for the Mamiya TLR mount system, manufactured during the 1960s. As a manual focus lens with a 135mm focal length and f/4.5 maximum aperture, it fits within Mamiya's interchangeable lens lineup for their twin-lens reflex camera bodies — a system that set Mamiya apart by allowing photographers to swap lenses on a TLR platform. This is a brand-specific lens designed for direct, native use on compatible Mamiya TLR bodies.

For film photographers and collectors working within the Mamiya TLR ecosystem, the 135mm Sekor represents a longer focal length choice that remains true to the era and system it was built for.

Pros — Mamiya 135mm f/4.5

  • ✓Native Mamiya TLR mount ensures direct, system-correct compatibility with Mamiya TLR bodies
  • ✓135mm focal length provides a longer perspective option within the Mamiya TLR interchangeable lens system
  • ✓Manufactured in the 1960s, offering authentic vintage medium format character

Cons — Mamiya 135mm f/4.5

  • ✗Manual focus only — no autofocus capability, requiring careful technique for critical sharpness
  • ✗Compatibility is limited exclusively to Mamiya TLR mount bodies, with no broader cross-system use
  • ✗f/4.5 maximum aperture is relatively modest, limiting use in lower-light conditions

Videos — Mamiya 135mm f/4.5

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Resources & Downloads — Mamiya 135mm f/4.5

Manuals & Guides

Frequently Asked Questions — Mamiya 135mm f/4.5

Which cameras is this lens compatible with?+
This lens is designed for the Mamiya TLR mount system and is listed under brand-specific, interchangeable lenses for that platform. It is not compatible with other lens mounts or camera systems without adaptation, and even then, TLR-specific optics are generally not straightforward to adapt.
Does this lens support autofocus?+
No. The Mamiya TLR 135mm f/4.5 Sekor is a manual focus lens, consistent with all optics designed for Mamiya TLR cameras of the 1960s era. Focusing must be done by hand using the camera's ground glass or focusing screen.
When was this lens made?+
According to the specifications, the year of manufacture is listed as 1960–1969, placing it firmly in the classic vintage film photography era. Buyers should expect age-appropriate wear and should inspect individual examples carefully.
What is the maximum aperture of this lens?+
The maximum aperture is f/4.5, which is a typical specification for medium format TLR lenses of this period. This aperture is suitable for controlled lighting situations such as studio or outdoor daylight shooting.
Is this lens part of an interchangeable system?+
Yes. The specifications confirm it is listed as an interchangeable lens for the Mamiya TLR system, meaning it can be swapped with other focal lengths on compatible Mamiya TLR bodies — a distinguishing feature of the Mamiya TLR platform compared to many fixed-lens TLR cameras of the same era.

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