Mamiya Sekor C 45mm f/2.8 N Manual Focus Lens for 645 Review

The Mamiya Sekor C 45mm f/2.8 N is a legacy manual focus wide-angle lens designed for the Mamiya 645 medium format system. With a 67mm filter thread and an f/2.8 maximum aperture, it offers a moderately fast option for landscape, architecture, and environmental portraiture work on the 645 platform. This lens is part of Mamiya's well-regarded C-series lineup, known for solid build quality and competent optical performance in the medium format arena.

As a used item typically available in bargain to standard used condition grades, this lens represents an affordable entry point for shooters working with Mamiya 645 film bodies or digital backs. The 45mm focal length translates to a moderately wide field of view on the 645 format, making it versatile for general-purpose shooting. Its manual focus operation and mechanical design are hallmarks of the medium format film era, requiring patience and technique but rewarding deliberate, methodical work.