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Mamiya Sekor Z 90mm f/3.5 W Lens for RZ67 System {77}

Model #235691
  • $283.00

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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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Mamiya RZ67's standard workhorse, 90mm f/3.5 medium format glass.

The Mamiya Sekor Z 90mm f/3.5 W sits at the heart of the RZ67 system for good reason. On a 6x7 medium format frame, 90mm lands close to the classic 'normal' focal length, giving you a field of view that reads as natural and unforced without the distortion of wider options. The f/3.5 maximum aperture gives you enough light-gathering ability to work in mixed or subdued conditions, and the 77mm filter thread means your existing circular polarizers and ND filters likely fit without an adapter ring.

The RZ67 platform is a rotating back system built around deliberate, methodical shooting, and this lens fits that workflow. You're not buying into this system for speed. You're buying it because the image quality ceiling from 6x7 film or a medium format digital back is simply higher than what 35mm can produce. At 90mm, this lens is the one you reach for most sessions, whether you're building a shot in the studio or working from a tripod in the field. For photographers already invested in the RZ67 ecosystem, this is the lens that earns its place on the camera body more than any other focal length.

Who It's For

Studio portrait photographers get a natural perspective on the 6x7 frame without the spatial compression of longer glass, making subject-to-background relationships feel honest than stacked. Landscape photographers working with a tripod-mounted RZ67 will find the 90mm angle of view practical for mid-range compositions where ultrawide distortion would hurt foreground-to-sky balance. Film photographers building out a RZ67 kit benefit from owning the focal length that covers the widest range of general assignments. Photographers using a medium format digital back on the RZ67 platform get a field-proven optic designed specifically for the system's image circle demands.

Key Features

  • 90mm focal length for standard field of view on 6x7 medium format
  • f/3.5 maximum aperture for mixed and subdued light
  • 77mm filter thread for direct adapter compatibility
  • Mamiya RZ67 rotating back system mount
  • Medium format glass standard workhorse lens

FAQ

What focal length does 90mm give you on the RZ67 system?
On 6x7 medium format, 90mm acts as a standard focal length-a natural, unforced field of view without the distortion of wider options.
Can I use my existing 77mm filters with this lens?
Yes. The Sekor Z 90mm f/3.5 W has a 77mm filter thread, so circular polarizers and ND filters you already own will mount directly.
Is the f/3.5 aperture fast enough for low-light work?
f/3.5 provides solid light-gathering ability for mixed or subdued conditions, though the RZ67 system itself is built around deliberate, methodical shooting rather than fast autofocus work.
Why would I choose this over a wider or longer focal length for the RZ67?
At 90mm, this is the standard workhorse lens for most RZ67 sessions-whether in the studio or on a tripod in the field. It's the focal length you'll reach for most often.
What kind of photographers is the RZ67 system designed for?
The RZ67 platform suits photographers prioritizing image quality ceiling over speed, typically shooting film or with a medium format digital back where the 6x7 frame size outperforms 35mm.
Does this lens work with digital RZ67 backs?
The Sekor Z 90mm f/3.5 W is a Mamiya RZ67 mount lens and will work with compatible RZ67 digital backs, though you should verify compatibility with your specific back.
SpecificationValue
Focal Length90mm
Max Aperturef/3.5
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 Standard / Normal
Max Focal Length 90mm
Min Focal Length 90mm