Mamiya Sekor Z 180mm f/4.5 Lens for RZ67 System Review

The Mamiya Sekor Z 180mm f/4.5 is a medium-telephoto prime lens designed for the RZ67 medium format system. At 180mm, it offers a classic portrait and detail focal length for 6x7 shooters, delivering excellent perspective compression and subject isolation. The f/4.5 maximum aperture is typical for medium format lenses of this era and focal length, providing a reasonable balance between light gathering and physical size. This lens is widely available on the used market, including from KEH in Excellent and Excellent Plus condition grades, making it an accessible option for RZ67 users looking to expand their kit. The 77mm filter thread is standard for the RZ67 line, simplifying filter sharing across lenses. While not the fastest optic in the Mamiya lineup, the 180mm f/4.5 is a practical workhorse for portraiture, product work, and landscapes where shallow depth of field and smooth rendering are priorities.