Mamiya Sekor C 127mm f/3.8 - Mamiya RB67-mount

The Sekor C 127mm f/3.8 is a standard-to-telephoto lens designed for the Mamiya RB67 medium format system. Providing a focal length roughly equivalent to 60mm in the 35mm format, it is often favoured as a versatile alternative to the 90mm or 110mm lenses. As a leaf-shutter lens, it allows for flash synchronisation at all shutter speeds, making it a staple for studio work. Condition checks for this model centre on the mechanical Seiko shutter. It is essential to verify that the slow speeds are accurate and that the shutter blades are free of oil. SDS tests the aperture linkage and ensures the glass is clear of haze. Wear on the bayonet mount and the condition of the rubber grip on the focusing ring are also assessed.