Mamiya-Sekor Z 250mm f/4.5 (SN: 11368)

Mamiya-Sekor Z 250mm f/4.5 (SN: 11368)
A medium format telephoto lens for Mamiya RZ67 – sharp, balanced, and built for professionals.

The Mamiya-Sekor Z 250mm f/4.5 is a high-performance telephoto lens designed for the Mamiya RZ67 medium format system. It offers a moderate telephoto field of view equivalent to approximately 123mm in 35mm terms, making it excellent for portraits, compression shots, and distant subjects with shallow depth of field.

Part of the premium Z-series, this lens is multicoated for improved contrast and color fidelity, and features floating element design for optimal sharpness even at closer distances. It’s fully mechanical and requires no batteries, working in conjunction with the RZ67’s electronically controlled shutter system.

Key Features

• Mount: Mamiya RZ67 bayonet

• Focal length: 250mm

• Maximum aperture: f/4.5

• Optical design: 6 elements in 5 groups

• Filter size: 77mm

• Angle of view: 17°

• Minimum focus distance: 2.5 m

• Weight: approx. 1,150g

• Built-in tripod collar for better balance

• Compatible with all Mamiya RZ67 models

• Multicoated glass for high contrast and reduced flare

Condition
Used – Good condition
Lens (SN: 11368) is in good working order. Optics are clean — no haze, fungus, or separation. Focus is smooth, aperture blades are snappy and oil-free. Normal cosmetic wear on the barrel, consistent with professional use.

What’s Included

• Mamiya-Sekor Z 250mm f/4.5 lens (SN: 11368)

• Front and rear lens caps

• Built-in tripod collar