Welcome to keh.com!
Theme gray image

Mamiya Sekor Z 180mm f/4.5 W-N Lens for RZ67 System {77}

Model #235668
  • $80.00

Select Gear Grade
Our Grading System
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.
BN Bargain
With Caps
$80.00
Only 3 left!
Free 180 Day warranty on all purchases
FREE SHIPPING OVER $75 + NO HASSLE 21-DAY RETURNS
Talk with an expert:
1-800-342-5534

Mamiya's 180mm portrait workhorse for the RZ67 system.

The Sekor Z 180mm f/4.5 W-N sits in the focal length that medium format portrait photographers return to again and again. On the RZ67's 6x7 frame, 180mm delivers a working distance that keeps subjects at ease while the large negative renders fine detail with the kind of tonal gradation that 35mm simply cannot match. The f/4.5 maximum aperture is deliberate for a lens of this focal length on medium format, it keeps the optical formula controlled and delivers consistent performance across the frame.

The 77mm filter thread is a practical detail worth noting: it's a standard size, so neutral density, polarizing, and warming filters carry over from other lenses in a working kit without a drawer full of step rings. This is a purpose-built optic for a purpose-built system, and it rewards photographers who commit to the RZ67 workflow with results that hold up at any output size.

Who It's For

Portrait photographers working with the RZ67 will find the 180mm focal length gives flattering subject compression on the 6x7 negative without crowding the subject. Studio photographers shooting on film or scanning for large-format output get the resolving potential of medium format at a focal length suited to head-and-shoulder framing. Documentary and editorial photographers already invested in the RZ67 system gain a telephoto option that stays within the Z-mount lens family. Fine art photographers printing large benefit from the tonal depth the 6x7 frame provides at this focal length.

Key Features

  • 180mm focal length optimized for medium format portraiture
  • f/4.5 maximum aperture with controlled optical formula
  • 77mm filter thread matches standard accessories
  • Mamiya RZ67 mount
  • Purpose-built for 6x7 frame geometry
  • Delivers consistent corner-to-corner performance

FAQ

What's the filter thread size on this 180mm?
77mm - a standard size that lets you share filters across other lenses in your RZ67 kit without step rings.
Is 180mm the right focal length for medium format portraits?
Yes. On the RZ67's 6x7 frame, 180mm gives you the working distance that keeps subjects comfortable while rendering skin tone and fine detail with tonal separation 35mm can't touch.
Why f/4.5 instead of a wider aperture?
The optical formula stays controlled at f/4.5, which means consistent performance edge to edge. Medium format portrait work doesn't demand f/2.8 the way 35mm does.
What mount does this use?
Mamiya RZ67 - it's built specifically for that system.
Will results hold up in large prints?
The negative is large enough that this lens rewards any output size - there's no ceiling where the image breaks down.
SpecificationValue
Focal Length180mm
Max Aperturef/4.5
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 Short Tele / Portrait
Max Focal Length 180mm
Min Focal Length 180mm