Mamiya's telephoto for the RZ67 — the Sekor Z 180mm f/4.5 W-N for medium format portraiture.
The Mamiya Sekor Z 180mm f/4.5 W-N is a telephoto lens for the Mamiya RZ67 medium format system. On the 6x7 format, 180mm provides approximately a 90mm equivalent — an ideal portrait focal length. The W designation indicates the wider image circle version, and N indicates a newer optical update. Part of the RZ system's comprehensive lens lineup.
Optical performance is very good. Sharpness is excellent when stopped down with the smooth tonal rendering that medium format is known for. The 6x7 format combined with telephoto compression produces images with extraordinary depth and dimensionality. Built-in leaf shutter enables flash sync at all speeds — critical for studio portrait and fashion work.
Mamiya RZ mount with integrated leaf shutter. Filter thread is 77mm. Weight is approximately 680 grams. Build quality is professional grade. Manual focus using the RZ67's bellows focusing system. The W-N designation indicates this is a later, improved version with wider coverage and updated optics. The leaf shutter adds weight but invaluable functionality.
Available on the used market at moderate prices. Check leaf shutter operation across all speeds and clean optics. An essential portrait lens for the RZ67 system. The 90mm equivalent on 6x7 medium format produces portraits with a quality and dimensionality that smaller formats cannot replicate. The 110mm f/2.8 and 250mm are the neighboring focal length options.