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Mamiya 645 Auto Extension Ring Set (No. 1, 2, 3)

KEH Model# 292438

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* Item pictured for illustrative purposes only, actual item not pictured.

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Mamiya 645 Auto Extension Ring Set (No. 1, 2, 3) Description


Mamiya Automatic Extension Ring Set includes Number 1, 2, and 3 extension rings. This set is designed for use with 80mm f/1.9 and 80mm f/2.8 lenses. It diaphragm automation and meter coupling are preserved. When combined, the extension ring set enables full 1:1 ratio. Individually the extension rings extend the lens either 11.8mm (No. 1 ring), 23.6mm (No. 2 ring) or 35.4mm (No. 3 ring) from the camera body.

KEH Specifications

  • Function: Offers additional magnification to the lens
  • Compatibility: Mamiya 645mm
  • Step Range: 80mm f2.8, f1.9


Physical Characteristics

Lens Mount Mamiya M645

General information

Brand Name Mamiya
Product information