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Mamiya Sekor Z 127mm f/3.8 W Lens for RZ67 System {77}

Model #235659
  • $82.00

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New in box complete with manufacturer's USA warranty. Not previously owned or used.
Essentially new with no signs of use. “Open box.” In manufacturer's packaging with original accessories and instructions. 180-day warranty.
Barely used with virtually no traces of wear. Only the closest inspections will reveal slight use. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Lightly used with limited signs of wear. Exceptionally nice but may have slight wear on finish visible. Lens glass could contain light dust or debris. Excellent picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Noticeably used with average signs of wear. Shows moderate wear for the age of the item, with the possibility of blemishes and/or minimal dings. Lens glass may have average dust and zoom/focus ring tension may have slight looseness or tightness overall, but will not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
Heavily used with extensive visible wear. Equipment is rough, with multiple impressions in the finish, excessive finish loss and brassing. Glass will have marks, fungus and/or heavy/cloudy haze which could affect picture quality. Accessories usually not included, unless noted in listing. Not covered under KEH warranty.
Non-functional or damaged. Equipment will not work. Usable for parts. Not covered under KEH warranty and non-returnable.
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$82.00
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The RZ67 normal-portrait prime that defined medium format rendering.

The Mamiya Sekor Z 127mm f/3.8 W sits at the heart of the RZ67 system's lens lineup, covering the focal length that medium format photographers reach for most. On the 6x7 negative, 127mm lands right in the portrait-to-normal range, giving you working distance that flatters subjects without the compression of a longer telephoto. The f/3.8 maximum aperture is fast enough for controlled light separation on the large format negative, where even modest apertures produce separation that smaller formats can't match. A 77mm filter thread means common circular polarizers and ND filters fit without hunting for specialty sizes.

The RZ67 system was built around a rotating back and a lens-shutter design that made studio and location work more fluid than competing medium format systems of its era. The Z-series lenses were engineered specifically for that architecture. Buying into this glass means buying into one of the most refined medium format systems ever made, and the 127mm is the lens you'll leave on the camera most of the time.

Who It's For

Studio portrait photographers working with the RZ67 will find the 127mm f/3.8 W their default choice, offering the working distance and rendering that defines the system's reputation. Film photographers shooting editorial or commercial work on 6x7 benefit from the focal length's flattering perspective at portrait distances. Photographers scanning medium format negatives for large-format output will appreciate the image circle and optical quality the Z-series was designed to deliver. Anyone building or completing an RZ67 kit needs this lens as a foundation.

Key Features

  • 127mm focal length for portrait-to-normal medium format framing
  • f/3.8 maximum aperture for controlled separation on 6x7 negative
  • 77mm filter thread accepts standard circular polarizers and ND filters
  • Mamiya RZ67 mount for leaf-shutter leaf-shutter system
  • Built for RZ67 rotating back and location-fluid workflow

FAQ

What focal length is the 127mm on a 6x7 negative?
On the 6x7 frame, 127mm functions as a normal-to-portrait lens, giving you working distance that suits head-and-shoulders work without the compression of longer telephotos.
How fast is the f/3.8 aperture for medium format work?
f/3.8 is fast enough to generate controlled light separation on the large negative, where even modest apertures produce subject isolation that smaller formats require faster glass to match.
What filters work with this lens?
The 77mm filter thread accepts standard circular polarizers, ND filters, and other common glass without requiring specialty adapter rings.
Is the 127mm the standard lens for the RZ67 system?
Yes. 127mm covers the focal length medium format photographers reach for most, and it's the lens you'll keep mounted on the camera during typical assignments.
How does this lens work with the RZ67's rotating back?
The RZ67 system was built around a rotating back and leaf-shutter lens design that makes switching between landscape and portrait orientation seamless without changing the camera body.
What makes the Z-series lenses different from earlier Mamiya glass?
The Z-series lenses were engineered specifically for the RZ67 architecture, taking full advantage of the system's rotating back and leaf-shutter design.
SpecificationValue
Focal Length127mm
Max Aperturef/3.8
MountMamiya RZ67
Filter Thread77mm

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Mamiya
Filter Size 77mm
Focus Type Manual focus (only)
Lens Mount Mamiya RZ
Lens Type Telephoto / Long
Max Focal Length 127mm
Min Focal Length 127mm