Mamiya Sekor C 210mm f/4 - Mamiya M645-mount

The Sekor C 210mm f/4 is a telephoto prime lens for the Mamiya M645 medium format system. Equivalent to approximately 130mm in 35mm terms, it offers a narrow angle of view suitable for compressed landscapes and head-and-shoulder portraits. Despite its focal length, the lens remains relatively compact and manageable for handheld shooting compared to longer medium format optics. Checks should focus on the internal optical path to ensure it is free from fungal growth or heavy haze. The integrated sliding lens hood should move freely and hold its position. SDS verifies that the diaphragm responds correctly to the stop-down lever and that the multi-coating remains intact without significant cleaning marks or scratches on the front element.