Used Mamiya Sekor C 35mm f/3.5 for Sale — From £149 | UsedLens.co.uk

£149.00 Low price

£541.45 High price

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Great for: landscape architecture travel general

Mamiya's wide-angle 645 prime — the manual-focus Sekor C 35mm f/3.5 for medium format.

The Mamiya Sekor C 35mm f/3.5 is a wide-angle lens for the Mamiya 645 medium-format system, introduced in 1976 alongside the M645 body line. The C designation marks it as part of the original Sekor C family that predated the later N-series revision. On the roughly 56x41.5mm 645 frame it delivers a wide field of view suited to interiors, architecture and expansive landscape work.

This is a manual-focus lens native to the Mamiya 645 bayonet mount, with a focal length of 35mm and a maximum aperture of f/3.5. Aperture is set on the lens with a mechanical ring, and the leaf-shutter or focal-plane behaviour depends on the body it is mounted to. The optical layout was designed to cover the full 645 image circle while controlling the distortion that wide focal lengths can introduce on larger formats.

At 35mm on 645 the lens gives an angle of view broadly comparable to a 21-22mm lens in 35mm terms, making it a genuine wide option rather than a moderate one. Stopped down it renders fine detail across the frame, and the moderate f/3.5 speed keeps the front element and overall size manageable for a wide medium-format optic. It is a practical choice where a broad perspective and deep depth of field are wanted.

On the used market the Sekor C 35mm f/3.5 turns up less often than the standard 80mm lenses, so patience can be needed to find a clean copy. Inspect the glass for haze, fungus and internal separation, check that the aperture blades are dry and snap cleanly, and confirm the focus helicoid turns smoothly without grit. Verify the rear bayonet and electrical or mechanical coupling for wear, and look for coating scratches on the large front element.

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