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You are here: Home / Article / Aperture blades

Aperture blades

March 4, 2022 by Rod Lawton

The adjustable hole in the lens diaphragm is created by a set of overlapping metal leaves, or ‘blades’. The greater the number of blades, the rounder the hole created and the better the lens’s ‘bokeh’ in out of focus areas. Aperture blades are often curved, too, to enhance that circular shape.

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