Sigma MC-21 Mount Converter Lens Adapter w/ Warranty + Accessories Bundle Brand_Nest The technology that makes it

The technology that makes it happen

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Number of Diaphragm Blades: 9 (rounded diaphragm)

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IPS technology brings you clear views from almost any angle

Sigma MC-21 Mount Converter Lens Adapter w/ Warranty + Accessories Bundle Brand_Nest The technology that makes itEffective use of lens investment Attaching the MC 21 to your collection of SIGMAs CANON EF mount compatible lenses allows them to be used as L Mount system lenses, promoting the effective use of valuable lenses already owned. The MC 21 increases the number of interchangeable lenses manufactured by SIGMA that can be used with the L Mount system by 36 lenses. Compatible with the autocrop function, mounting APS C size image circle DC lenses to a camera