Additional information:
The Mamiya / Sekor SX 135mm f/2.8 is a telephoto prime lens for 35 mm SLR cameras with the M42 screw mount.
This is rather a big and sharp lens. It is equipped with a retractable hood. This SX series lens was manufactured by Mamiya for Mamiya "SX" cameras, alongside with lenses for Voigtlander QBM cameras. The optical scheme includes four elements in four groups.
Links to online resources: Posted by: Vbfedor Date of publication: 23.12.2012
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