Mamiya Sekor Z 110mm f/2.8 Lens for RZ67 System {77}

Mamiya RZ67's 110mm f/2.8: the medium format portrait standard.

On a 6x7 medium format frame, 110mm sits right at the classic portrait-length equivalent, and f/2.8 gives you genuine subject separation on film that no 35mm system could replicate at the same magnification. The 77mm filter thread is a practical indicator of the glass up front, this is a substantial optic built for a system that was never interested in cutting corners.

The RZ67 platform itself uses a rotating back and a bellows-based focusing mechanism, which means every lens in the Z lineup benefits from precise, controlled focus travel. At f/2.8 on a 6x7 negative or digital back, depth of field is genuinely shallow in a way that reads immediately in print or on screen. For portrait work especially, that combination of focal length and aperture draws on the full resolving advantage of the larger format.

This lens represents one of the most direct paths into serious medium format portraiture without stepping into large format complexity. The RZ67 system remains widely supported, and the Sekor Z glass holds its technical reputation firmly.

Who It's For

Portrait photographers shooting film or a Phase One/Mamiya digital back will find the 110mm f/2.8 hits the ideal working distance for head-and-shoulders framing with room to breathe. Studio photographers who print large benefit from the resolving capacity a 6x7 frame affords at this focal length. Documentary and editorial shooters working with the RZ67 on location gain a fast, natural-perspective optic suited to available-light situations. Fashion photographers who want medium format rendering with a focal length that flatters without distorting facial geometry will recognize exactly what this lens is built to do.

Key Features

• 110mm f/2.8 fixed focal length optimized for medium format portraiture
• Mamiya RZ67 mount with bellows-based focusing mechanism
• 77mm filter thread accommodating substantial optical design
• f/2.8 aperture delivers genuine depth of field control on 6x7 frame
• Built for film and digital backs on RZ67 rotating system

FAQ

What focal length equivalent is 110mm on the RZ67 in 35mm terms?

On a 6x7 frame, 110mm sits in the classic portrait range. The larger format itself means you get subject separation and shallow depth of field that no 35mm lens can match at comparable magnification.

What's the filter thread size for the 110mm f/2.8?

77mm. That size reflects the substantial optical design built for this system.

Can you use this lens on other Mamiya mounts?

No, it's specific to the RZ67 mount. The Z-series glass is engineered for the RZ67 system's bellows focusing and rotating back.

How does f/2.8 perform on 6x7 film or a digital back?

Depth of field is genuinely shallow at f/2.8 on the larger frame. That subject separation reads immediately in print and on screen, which is the whole point of medium format portraiture.

Is the RZ67 system still supported?

Yes. The RZ67 remains widely supported, and the Sekor Z glass holds its technical reputation. Parts and service remain available.

Does this lens have autofocus?

No. The RZ67 uses a bellows-based manual focusing mechanism shared across all lenses in the system. Focus control is precise and tactile.

What kind of medium format work suits this focal length?

Portraits, fashion, close environmental work. 110mm on 6x7 is the workhorse focal length for medium format portraiture without the size and cost of large format.